Home / 71,864.89-107,292.00-54,909.14

Finding the Fourth Proportional to 71,864.89, 107,292.00 and 54,909.14

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Solution

The fourth proportional to 71,864.89, 107,292.00 and 54,909.14 is: 81,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,864.89 : 107,292.00 = 54,909.14 : x
  2. Step 2: Convert to fraction form
    71,864.89/107,292.00 = 54,909.14/x
  3. Step 3: Cross multiply
    71,864.89x = 107,292.00 × 54,909.14
  4. Step 4: Simplify right side
    71,864.89x = 5,891,311,118.33
  5. Step 5: Solve for x
    x = 5,891,311,118.33/71,864.89
  6. Step 6: Final answer
    x = 81,977.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.