Home / 61,386.30-84,711.69-37,512.90

Finding the Fourth Proportional to 61,386.30, 84,711.69 and 37,512.90

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Solution

The fourth proportional to 61,386.30, 84,711.69 and 37,512.90 is: 51,766.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,386.30 : 84,711.69 = 37,512.90 : x
  2. Step 2: Convert to fraction form
    61,386.30/84,711.69 = 37,512.90/x
  3. Step 3: Cross multiply
    61,386.30x = 84,711.69 × 37,512.90
  4. Step 4: Simplify right side
    61,386.30x = 3,177,781,155.80
  5. Step 5: Solve for x
    x = 3,177,781,155.80/61,386.30
  6. Step 6: Final answer
    x = 51,766.94

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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.