Home / 67,414.20-93,050.10-39,129

Finding the Fourth Proportional to 67,414.20, 93,050.10 and 39,129

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Solution

The fourth proportional to 67,414.20, 93,050.10 and 39,129 is: 54,008.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,414.20 : 93,050.10 = 39,129 : x
  2. Step 2: Convert to fraction form
    67,414.20/93,050.10 = 39,129/x
  3. Step 3: Cross multiply
    67,414.20x = 93,050.10 × 39,129
  4. Step 4: Simplify right side
    67,414.20x = 3,640,957,362.90
  5. Step 5: Solve for x
    x = 3,640,957,362.90/67,414.20
  6. Step 6: Final answer
    x = 54,008.76

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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.