Home / 84,547.71-126,761.49-42,397.38

Finding the Fourth Proportional to 84,547.71, 126,761.49 and 42,397.38

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Solution

The fourth proportional to 84,547.71, 126,761.49 and 42,397.38 is: 63,565.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,547.71 : 126,761.49 = 42,397.38 : x
  2. Step 2: Convert to fraction form
    84,547.71/126,761.49 = 42,397.38/x
  3. Step 3: Cross multiply
    84,547.71x = 126,761.49 × 42,397.38
  4. Step 4: Simplify right side
    84,547.71x = 5,374,355,060.90
  5. Step 5: Solve for x
    x = 5,374,355,060.90/84,547.71
  6. Step 6: Final answer
    x = 63,565.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.