Home / 66,110.18-91,209.24-42,250.82

Finding the Fourth Proportional to 66,110.18, 91,209.24 and 42,250.82

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Solution

The fourth proportional to 66,110.18, 91,209.24 and 42,250.82 is: 58,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,110.18 : 91,209.24 = 42,250.82 : x
  2. Step 2: Convert to fraction form
    66,110.18/91,209.24 = 42,250.82/x
  3. Step 3: Cross multiply
    66,110.18x = 91,209.24 × 42,250.82
  4. Step 4: Simplify right side
    66,110.18x = 3,853,664,725.53
  5. Step 5: Solve for x
    x = 3,853,664,725.53/66,110.18
  6. Step 6: Final answer
    x = 58,291.55

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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.