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Finding the Fourth Proportional to 89,319.30, 133,978.95 and 36,701.70

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Solution

The fourth proportional to 89,319.30, 133,978.95 and 36,701.70 is: 55,052.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,319.30 : 133,978.95 = 36,701.70 : x
  2. Step 2: Convert to fraction form
    89,319.30/133,978.95 = 36,701.70/x
  3. Step 3: Cross multiply
    89,319.30x = 133,978.95 × 36,701.70
  4. Step 4: Simplify right side
    89,319.30x = 4,917,255,229.22
  5. Step 5: Solve for x
    x = 4,917,255,229.22/89,319.30
  6. Step 6: Final answer
    x = 55,052.55

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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.