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Finding the Fourth Proportional to 42,010, 63,059.64 and 25,411.92

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Solution

The fourth proportional to 42,010, 63,059.64 and 25,411.92 is: 38,144.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,010 : 63,059.64 = 25,411.92 : x
  2. Step 2: Convert to fraction form
    42,010/63,059.64 = 25,411.92/x
  3. Step 3: Cross multiply
    42,010x = 63,059.64 × 25,411.92
  4. Step 4: Simplify right side
    42,010x = 1,602,466,526.91
  5. Step 5: Solve for x
    x = 1,602,466,526.91/42,010
  6. Step 6: Final answer
    x = 38,144.88

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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.