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Finding the Fourth Proportional to 72,720.72, 109,082.43 and 22,799.70

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Solution

The fourth proportional to 72,720.72, 109,082.43 and 22,799.70 is: 34,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,720.72 : 109,082.43 = 22,799.70 : x
  2. Step 2: Convert to fraction form
    72,720.72/109,082.43 = 22,799.70/x
  3. Step 3: Cross multiply
    72,720.72x = 109,082.43 × 22,799.70
  4. Step 4: Simplify right side
    72,720.72x = 2,487,046,679.27
  5. Step 5: Solve for x
    x = 2,487,046,679.27/72,720.72
  6. Step 6: Final answer
    x = 34,199.97

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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.