Home / 98,761.92-136,298.76-56,321.52

Finding the Fourth Proportional to 98,761.92, 136,298.76 and 56,321.52

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Solution

The fourth proportional to 98,761.92, 136,298.76 and 56,321.52 is: 77,727.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,761.92 : 136,298.76 = 56,321.52 : x
  2. Step 2: Convert to fraction form
    98,761.92/136,298.76 = 56,321.52/x
  3. Step 3: Cross multiply
    98,761.92x = 136,298.76 × 56,321.52
  4. Step 4: Simplify right side
    98,761.92x = 7,676,553,337.32
  5. Step 5: Solve for x
    x = 7,676,553,337.32/98,761.92
  6. Step 6: Final answer
    x = 77,727.87

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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.