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Finding the Fourth Proportional to 71,908.16, 107,895.68 and 27,520.28

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Solution

The fourth proportional to 71,908.16, 107,895.68 and 27,520.28 is: 41,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,908.16 : 107,895.68 = 27,520.28 : x
  2. Step 2: Convert to fraction form
    71,908.16/107,895.68 = 27,520.28/x
  3. Step 3: Cross multiply
    71,908.16x = 107,895.68 × 27,520.28
  4. Step 4: Simplify right side
    71,908.16x = 2,969,319,324.39
  5. Step 5: Solve for x
    x = 2,969,319,324.39/71,908.16
  6. Step 6: Final answer
    x = 41,293.22

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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.