Home / 66,355.52-91,571.16-36,140.96

Finding the Fourth Proportional to 66,355.52, 91,571.16 and 36,140.96

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Solution

The fourth proportional to 66,355.52, 91,571.16 and 36,140.96 is: 49,874.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,355.52 : 91,571.16 = 36,140.96 : x
  2. Step 2: Convert to fraction form
    66,355.52/91,571.16 = 36,140.96/x
  3. Step 3: Cross multiply
    66,355.52x = 91,571.16 × 36,140.96
  4. Step 4: Simplify right side
    66,355.52x = 3,309,469,630.71
  5. Step 5: Solve for x
    x = 3,309,469,630.71/66,355.52
  6. Step 6: Final answer
    x = 49,874.82

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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.