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Finding the Fourth Proportional to 88,799.20, 133,328.40 and 36,311.20

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Solution

The fourth proportional to 88,799.20, 133,328.40 and 36,311.20 is: 54,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,799.20 : 133,328.40 = 36,311.20 : x
  2. Step 2: Convert to fraction form
    88,799.20/133,328.40 = 36,311.20/x
  3. Step 3: Cross multiply
    88,799.20x = 133,328.40 × 36,311.20
  4. Step 4: Simplify right side
    88,799.20x = 4,841,314,198.08
  5. Step 5: Solve for x
    x = 4,841,314,198.08/88,799.20
  6. Step 6: Final answer
    x = 54,519.80

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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.