Home / 54,653.76-75,422.61-30,778.20

Finding the Fourth Proportional to 54,653.76, 75,422.61 and 30,778.20

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Solution

The fourth proportional to 54,653.76, 75,422.61 and 30,778.20 is: 42,474.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,653.76 : 75,422.61 = 30,778.20 : x
  2. Step 2: Convert to fraction form
    54,653.76/75,422.61 = 30,778.20/x
  3. Step 3: Cross multiply
    54,653.76x = 75,422.61 × 30,778.20
  4. Step 4: Simplify right side
    54,653.76x = 2,321,372,175.10
  5. Step 5: Solve for x
    x = 2,321,372,175.10/54,653.76
  6. Step 6: Final answer
    x = 42,474.15

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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.