Home / 54,540.28-81,826.08-45,136.72

Finding the Fourth Proportional to 54,540.28, 81,826.08 and 45,136.72

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Solution

The fourth proportional to 54,540.28, 81,826.08 and 45,136.72 is: 67,718.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,540.28 : 81,826.08 = 45,136.72 : x
  2. Step 2: Convert to fraction form
    54,540.28/81,826.08 = 45,136.72/x
  3. Step 3: Cross multiply
    54,540.28x = 81,826.08 × 45,136.72
  4. Step 4: Simplify right side
    54,540.28x = 3,693,360,861.66
  5. Step 5: Solve for x
    x = 3,693,360,861.66/54,540.28
  6. Step 6: Final answer
    x = 67,718.04

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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.