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Finding the Fourth Proportional to 75,320.64, 112,978.22 and 22,728.75

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Solution

The fourth proportional to 75,320.64, 112,978.22 and 22,728.75 is: 34,092.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,320.64 : 112,978.22 = 22,728.75 : x
  2. Step 2: Convert to fraction form
    75,320.64/112,978.22 = 22,728.75/x
  3. Step 3: Cross multiply
    75,320.64x = 112,978.22 × 22,728.75
  4. Step 4: Simplify right side
    75,320.64x = 2,567,853,604.18
  5. Step 5: Solve for x
    x = 2,567,853,604.18/75,320.64
  6. Step 6: Final answer
    x = 34,092.30

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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.