Home / 67,761.20-101,622.36-47,115.92

Finding the Fourth Proportional to 67,761.20, 101,622.36 and 47,115.92

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Solution

The fourth proportional to 67,761.20, 101,622.36 and 47,115.92 is: 70,660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,761.20 : 101,622.36 = 47,115.92 : x
  2. Step 2: Convert to fraction form
    67,761.20/101,622.36 = 47,115.92/x
  3. Step 3: Cross multiply
    67,761.20x = 101,622.36 × 47,115.92
  4. Step 4: Simplify right side
    67,761.20x = 4,788,030,983.97
  5. Step 5: Solve for x
    x = 4,788,030,983.97/67,761.20
  6. Step 6: Final answer
    x = 70,660.36

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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.