Home / 45,121.66-67,359.55-39,218.38

Finding the Fourth Proportional to 45,121.66, 67,359.55 and 39,218.38

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Solution

The fourth proportional to 45,121.66, 67,359.55 and 39,218.38 is: 58,546.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,121.66 : 67,359.55 = 39,218.38 : x
  2. Step 2: Convert to fraction form
    45,121.66/67,359.55 = 39,218.38/x
  3. Step 3: Cross multiply
    45,121.66x = 67,359.55 × 39,218.38
  4. Step 4: Simplify right side
    45,121.66x = 2,641,732,428.53
  5. Step 5: Solve for x
    x = 2,641,732,428.53/45,121.66
  6. Step 6: Final answer
    x = 58,546.88

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1.5x scale

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.