Home / 54,870.70-75,720.48-30,671.55

Finding the Fourth Proportional to 54,870.70, 75,720.48 and 30,671.55

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Solution

The fourth proportional to 54,870.70, 75,720.48 and 30,671.55 is: 42,326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,870.70 : 75,720.48 = 30,671.55 : x
  2. Step 2: Convert to fraction form
    54,870.70/75,720.48 = 30,671.55/x
  3. Step 3: Cross multiply
    54,870.70x = 75,720.48 × 30,671.55
  4. Step 4: Simplify right side
    54,870.70x = 2,322,464,488.34
  5. Step 5: Solve for x
    x = 2,322,464,488.34/54,870.70
  6. Step 6: Final answer
    x = 42,326.13

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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.