Home / 54,285.30-81,408.75-25,818.90

Finding the Fourth Proportional to 54,285.30, 81,408.75 and 25,818.90

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Solution

The fourth proportional to 54,285.30, 81,408.75 and 25,818.90 is: 38,719.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,285.30 : 81,408.75 = 25,818.90 : x
  2. Step 2: Convert to fraction form
    54,285.30/81,408.75 = 25,818.90/x
  3. Step 3: Cross multiply
    54,285.30x = 81,408.75 × 25,818.90
  4. Step 4: Simplify right side
    54,285.30x = 2,101,884,375.38
  5. Step 5: Solve for x
    x = 2,101,884,375.38/54,285.30
  6. Step 6: Final answer
    x = 38,719.22

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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.