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Finding the Fourth Proportional to 101,737.52, 140,399.46 and 56,417.42

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Solution

The fourth proportional to 101,737.52, 140,399.46 and 56,417.42 is: 77,856.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,737.52 : 140,399.46 = 56,417.42 : x
  2. Step 2: Convert to fraction form
    101,737.52/140,399.46 = 56,417.42/x
  3. Step 3: Cross multiply
    101,737.52x = 140,399.46 × 56,417.42
  4. Step 4: Simplify right side
    101,737.52x = 7,920,974,600.60
  5. Step 5: Solve for x
    x = 7,920,974,600.60/101,737.52
  6. Step 6: Final answer
    x = 77,856.97

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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.