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Finding the Fourth Proportional to 40,750.88, 61,132.03 and 38,509.88

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Solution

The fourth proportional to 40,750.88, 61,132.03 and 38,509.88 is: 57,770.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,750.88 : 61,132.03 = 38,509.88 : x
  2. Step 2: Convert to fraction form
    40,750.88/61,132.03 = 38,509.88/x
  3. Step 3: Cross multiply
    40,750.88x = 61,132.03 × 38,509.88
  4. Step 4: Simplify right side
    40,750.88x = 2,354,186,737.52
  5. Step 5: Solve for x
    x = 2,354,186,737.52/40,750.88
  6. Step 6: Final answer
    x = 57,770.21

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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.