Home / 80,909.79-121,345.23-41,446.59

Finding the Fourth Proportional to 80,909.79, 121,345.23 and 41,446.59

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Solution

The fourth proportional to 80,909.79, 121,345.23 and 41,446.59 is: 62,159.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,909.79 : 121,345.23 = 41,446.59 : x
  2. Step 2: Convert to fraction form
    80,909.79/121,345.23 = 41,446.59/x
  3. Step 3: Cross multiply
    80,909.79x = 121,345.23 × 41,446.59
  4. Step 4: Simplify right side
    80,909.79x = 5,029,345,996.27
  5. Step 5: Solve for x
    x = 5,029,345,996.27/80,909.79
  6. Step 6: Final answer
    x = 62,159.92

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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.