Home / 80,943.46-121,425.38-27,645.53

Finding the Fourth Proportional to 80,943.46, 121,425.38 and 27,645.53

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Solution

The fourth proportional to 80,943.46, 121,425.38 and 27,645.53 is: 41,471.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,943.46 : 121,425.38 = 27,645.53 : x
  2. Step 2: Convert to fraction form
    80,943.46/121,425.38 = 27,645.53/x
  3. Step 3: Cross multiply
    80,943.46x = 121,425.38 × 27,645.53
  4. Step 4: Simplify right side
    80,943.46x = 3,356,868,343.87
  5. Step 5: Solve for x
    x = 3,356,868,343.87/80,943.46
  6. Step 6: Final answer
    x = 41,471.77

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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.