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Finding the Fourth Proportional to 88,393.52, 132,590.28 and 72,778.34

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Solution

The fourth proportional to 88,393.52, 132,590.28 and 72,778.34 is: 109,167.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,393.52 : 132,590.28 = 72,778.34 : x
  2. Step 2: Convert to fraction form
    88,393.52/132,590.28 = 72,778.34/x
  3. Step 3: Cross multiply
    88,393.52x = 132,590.28 × 72,778.34
  4. Step 4: Simplify right side
    88,393.52x = 9,649,700,478.54
  5. Step 5: Solve for x
    x = 9,649,700,478.54/88,393.52
  6. Step 6: Final answer
    x = 109,167.51

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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.