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Finding the Fourth Proportional to 80,568.31, 120,737.89 and 59,341.45

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Solution

The fourth proportional to 80,568.31, 120,737.89 and 59,341.45 is: 88,927.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,568.31 : 120,737.89 = 59,341.45 : x
  2. Step 2: Convert to fraction form
    80,568.31/120,737.89 = 59,341.45/x
  3. Step 3: Cross multiply
    80,568.31x = 120,737.89 × 59,341.45
  4. Step 4: Simplify right side
    80,568.31x = 7,164,761,462.54
  5. Step 5: Solve for x
    x = 7,164,761,462.54/80,568.31
  6. Step 6: Final answer
    x = 88,927.79

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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.