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Finding the Fourth Proportional to 88,708.10, 133,062.15 and 57,215.30

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Solution

The fourth proportional to 88,708.10, 133,062.15 and 57,215.30 is: 85,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,708.10 : 133,062.15 = 57,215.30 : x
  2. Step 2: Convert to fraction form
    88,708.10/133,062.15 = 57,215.30/x
  3. Step 3: Cross multiply
    88,708.10x = 133,062.15 × 57,215.30
  4. Step 4: Simplify right side
    88,708.10x = 7,613,190,830.90
  5. Step 5: Solve for x
    x = 7,613,190,830.90/88,708.10
  6. Step 6: Final answer
    x = 85,822.95

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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.