Home / 85,397.18-117,841.46-49,589.87

Finding the Fourth Proportional to 85,397.18, 117,841.46 and 49,589.87

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Solution

The fourth proportional to 85,397.18, 117,841.46 and 49,589.87 is: 68,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,397.18 : 117,841.46 = 49,589.87 : x
  2. Step 2: Convert to fraction form
    85,397.18/117,841.46 = 49,589.87/x
  3. Step 3: Cross multiply
    85,397.18x = 117,841.46 × 49,589.87
  4. Step 4: Simplify right side
    85,397.18x = 5,843,741,844.85
  5. Step 5: Solve for x
    x = 5,843,741,844.85/85,397.18
  6. Step 6: Final answer
    x = 68,430.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.