Home / 87,562.32-120,730.64-60,727.92

Finding the Fourth Proportional to 87,562.32, 120,730.64 and 60,727.92

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Solution

The fourth proportional to 87,562.32, 120,730.64 and 60,727.92 is: 83,731.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,562.32 : 120,730.64 = 60,727.92 : x
  2. Step 2: Convert to fraction form
    87,562.32/120,730.64 = 60,727.92/x
  3. Step 3: Cross multiply
    87,562.32x = 120,730.64 × 60,727.92
  4. Step 4: Simplify right side
    87,562.32x = 7,331,720,647.47
  5. Step 5: Solve for x
    x = 7,331,720,647.47/87,562.32
  6. Step 6: Final answer
    x = 83,731.46

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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.