Home / 54,086.10-81,129.15-35,423.70

Finding the Fourth Proportional to 54,086.10, 81,129.15 and 35,423.70

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Solution

The fourth proportional to 54,086.10, 81,129.15 and 35,423.70 is: 53,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,086.10 : 81,129.15 = 35,423.70 : x
  2. Step 2: Convert to fraction form
    54,086.10/81,129.15 = 35,423.70/x
  3. Step 3: Cross multiply
    54,086.10x = 81,129.15 × 35,423.70
  4. Step 4: Simplify right side
    54,086.10x = 2,873,894,670.86
  5. Step 5: Solve for x
    x = 2,873,894,670.86/54,086.10
  6. Step 6: Final answer
    x = 53,135.55

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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.