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Finding the Fourth Proportional to 85,508.64, 128,262.96 and 23,177.52

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Solution

The fourth proportional to 85,508.64, 128,262.96 and 23,177.52 is: 34,766.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,508.64 : 128,262.96 = 23,177.52 : x
  2. Step 2: Convert to fraction form
    85,508.64/128,262.96 = 23,177.52/x
  3. Step 3: Cross multiply
    85,508.64x = 128,262.96 × 23,177.52
  4. Step 4: Simplify right side
    85,508.64x = 2,972,817,320.66
  5. Step 5: Solve for x
    x = 2,972,817,320.66/85,508.64
  6. Step 6: Final answer
    x = 34,766.28

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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.