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Finding the Fourth Proportional to 71,760.58, 107,605.53 and 26,780.13

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Solution

The fourth proportional to 71,760.58, 107,605.53 and 26,780.13 is: 40,157.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,760.58 : 107,605.53 = 26,780.13 : x
  2. Step 2: Convert to fraction form
    71,760.58/107,605.53 = 26,780.13/x
  3. Step 3: Cross multiply
    71,760.58x = 107,605.53 × 26,780.13
  4. Step 4: Simplify right side
    71,760.58x = 2,881,690,082.12
  5. Step 5: Solve for x
    x = 2,881,690,082.12/71,760.58
  6. Step 6: Final answer
    x = 40,157.01

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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.