Home / 81,529.76-122,155.20-63,753.55

Finding the Fourth Proportional to 81,529.76, 122,155.20 and 63,753.55

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Solution

The fourth proportional to 81,529.76, 122,155.20 and 63,753.55 is: 95,521.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,529.76 : 122,155.20 = 63,753.55 : x
  2. Step 2: Convert to fraction form
    81,529.76/122,155.20 = 63,753.55/x
  3. Step 3: Cross multiply
    81,529.76x = 122,155.20 × 63,753.55
  4. Step 4: Simplify right side
    81,529.76x = 7,787,827,345.57
  5. Step 5: Solve for x
    x = 7,787,827,345.57/81,529.76
  6. Step 6: Final answer
    x = 95,521.29

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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.