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Finding the Fourth Proportional to 80,385.20, 110,932.20 and 44,573.12

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Solution

The fourth proportional to 80,385.20, 110,932.20 and 44,573.12 is: 61,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,385.20 : 110,932.20 = 44,573.12 : x
  2. Step 2: Convert to fraction form
    80,385.20/110,932.20 = 44,573.12/x
  3. Step 3: Cross multiply
    80,385.20x = 110,932.20 × 44,573.12
  4. Step 4: Simplify right side
    80,385.20x = 4,944,594,262.46
  5. Step 5: Solve for x
    x = 4,944,594,262.46/80,385.20
  6. Step 6: Final answer
    x = 61,511.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.