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Finding the Fourth Proportional to 88,393.77, 132,590.66 and 72,778.59

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Solution

The fourth proportional to 88,393.77, 132,590.66 and 72,778.59 is: 109,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,393.77 : 132,590.66 = 72,778.59 : x
  2. Step 2: Convert to fraction form
    88,393.77/132,590.66 = 72,778.59/x
  3. Step 3: Cross multiply
    88,393.77x = 132,590.66 × 72,778.59
  4. Step 4: Simplify right side
    88,393.77x = 9,649,761,281.97
  5. Step 5: Solve for x
    x = 9,649,761,281.97/88,393.77
  6. Step 6: Final answer
    x = 109,167.89

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1.5x scale

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.