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Finding the Fourth Proportional to 88,620, 132,855.48 and 36,067.20

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Solution

The fourth proportional to 88,620, 132,855.48 and 36,067.20 is: 54,070.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,620 : 132,855.48 = 36,067.20 : x
  2. Step 2: Convert to fraction form
    88,620/132,855.48 = 36,067.20/x
  3. Step 3: Cross multiply
    88,620x = 132,855.48 × 36,067.20
  4. Step 4: Simplify right side
    88,620x = 4,791,725,168.26
  5. Step 5: Solve for x
    x = 4,791,725,168.26/88,620
  6. Step 6: Final answer
    x = 54,070.47

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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.