Home / 54,843.16-75,686.52-30,970.84

Finding the Fourth Proportional to 54,843.16, 75,686.52 and 30,970.84

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Solution

The fourth proportional to 54,843.16, 75,686.52 and 30,970.84 is: 42,741.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,843.16 : 75,686.52 = 30,970.84 : x
  2. Step 2: Convert to fraction form
    54,843.16/75,686.52 = 30,970.84/x
  3. Step 3: Cross multiply
    54,843.16x = 75,686.52 × 30,970.84
  4. Step 4: Simplify right side
    54,843.16x = 2,344,075,101.08
  5. Step 5: Solve for x
    x = 2,344,075,101.08/54,843.16
  6. Step 6: Final answer
    x = 42,741.43

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.