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Finding the Fourth Proportional to 72,995.88, 109,493.82 and 17,591.88

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Solution

The fourth proportional to 72,995.88, 109,493.82 and 17,591.88 is: 26,387.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,995.88 : 109,493.82 = 17,591.88 : x
  2. Step 2: Convert to fraction form
    72,995.88/109,493.82 = 17,591.88/x
  3. Step 3: Cross multiply
    72,995.88x = 109,493.82 × 17,591.88
  4. Step 4: Simplify right side
    72,995.88x = 1,926,202,142.18
  5. Step 5: Solve for x
    x = 1,926,202,142.18/72,995.88
  6. Step 6: Final answer
    x = 26,387.82

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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.