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Finding the Fourth Proportional to 88,891.20, 133,304.40 and 29,728.80

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Solution

The fourth proportional to 88,891.20, 133,304.40 and 29,728.80 is: 44,582.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,891.20 : 133,304.40 = 29,728.80 : x
  2. Step 2: Convert to fraction form
    88,891.20/133,304.40 = 29,728.80/x
  3. Step 3: Cross multiply
    88,891.20x = 133,304.40 × 29,728.80
  4. Step 4: Simplify right side
    88,891.20x = 3,962,979,846.72
  5. Step 5: Solve for x
    x = 3,962,979,846.72/88,891.20
  6. Step 6: Final answer
    x = 44,582.36

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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.