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Finding the Fourth Proportional to 88,395.58, 132,593.38 and 72,780.40

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Solution

The fourth proportional to 88,395.58, 132,593.38 and 72,780.40 is: 109,170.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,395.58 : 132,593.38 = 72,780.40 : x
  2. Step 2: Convert to fraction form
    88,395.58/132,593.38 = 72,780.40/x
  3. Step 3: Cross multiply
    88,395.58x = 132,593.38 × 72,780.40
  4. Step 4: Simplify right side
    88,395.58x = 9,650,199,233.75
  5. Step 5: Solve for x
    x = 9,650,199,233.75/88,395.58
  6. Step 6: Final answer
    x = 109,170.61

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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.