Home / 54,489.00-81,256.67-53,990.75

Finding the Fourth Proportional to 54,489.00, 81,256.67 and 53,990.75

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Solution

The fourth proportional to 54,489.00, 81,256.67 and 53,990.75 is: 80,513.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,489.00 : 81,256.67 = 53,990.75 : x
  2. Step 2: Convert to fraction form
    54,489.00/81,256.67 = 53,990.75/x
  3. Step 3: Cross multiply
    54,489.00x = 81,256.67 × 53,990.75
  4. Step 4: Simplify right side
    54,489.00x = 4,387,108,691.46
  5. Step 5: Solve for x
    x = 4,387,108,691.46/54,489.00
  6. Step 6: Final answer
    x = 80,513.65

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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.