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Finding the Fourth Proportional to 88,620.35, 132,855.80 and 38,663.80

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Solution

The fourth proportional to 88,620.35, 132,855.80 and 38,663.80 is: 57,963.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,620.35 : 132,855.80 = 38,663.80 : x
  2. Step 2: Convert to fraction form
    88,620.35/132,855.80 = 38,663.80/x
  3. Step 3: Cross multiply
    88,620.35x = 132,855.80 × 38,663.80
  4. Step 4: Simplify right side
    88,620.35x = 5,136,709,554.58
  5. Step 5: Solve for x
    x = 5,136,709,554.58/88,620.35
  6. Step 6: Final answer
    x = 57,963.10

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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.