Home / 54,322.90-81,387.15-45,963.70

Finding the Fourth Proportional to 54,322.90, 81,387.15 and 45,963.70

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Solution

The fourth proportional to 54,322.90, 81,387.15 and 45,963.70 is: 68,863.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,322.90 : 81,387.15 = 45,963.70 : x
  2. Step 2: Convert to fraction form
    54,322.90/81,387.15 = 45,963.70/x
  3. Step 3: Cross multiply
    54,322.90x = 81,387.15 × 45,963.70
  4. Step 4: Simplify right side
    54,322.90x = 3,740,854,546.46
  5. Step 5: Solve for x
    x = 3,740,854,546.46/54,322.90
  6. Step 6: Final answer
    x = 68,863.31

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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.