Home / 52,422.10-78,633.15-40,743.70

Finding the Fourth Proportional to 52,422.10, 78,633.15 and 40,743.70

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Solution

The fourth proportional to 52,422.10, 78,633.15 and 40,743.70 is: 61,115.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,422.10 : 78,633.15 = 40,743.70 : x
  2. Step 2: Convert to fraction form
    52,422.10/78,633.15 = 40,743.70/x
  3. Step 3: Cross multiply
    52,422.10x = 78,633.15 × 40,743.70
  4. Step 4: Simplify right side
    52,422.10x = 3,203,805,473.66
  5. Step 5: Solve for x
    x = 3,203,805,473.66/52,422.10
  6. Step 6: Final answer
    x = 61,115.55

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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.