Home / 80,966.90-121,446.89-27,663.66

Finding the Fourth Proportional to 80,966.90, 121,446.89 and 27,663.66

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Solution

The fourth proportional to 80,966.90, 121,446.89 and 27,663.66 is: 41,494.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,966.90 : 121,446.89 = 27,663.66 : x
  2. Step 2: Convert to fraction form
    80,966.90/121,446.89 = 27,663.66/x
  3. Step 3: Cross multiply
    80,966.90x = 121,446.89 × 27,663.66
  4. Step 4: Simplify right side
    80,966.90x = 3,359,665,334.70
  5. Step 5: Solve for x
    x = 3,359,665,334.70/80,966.90
  6. Step 6: Final answer
    x = 41,494.31

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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.