Home / 91,113.20-125,732.21-67,231.16

Finding the Fourth Proportional to 91,113.20, 125,732.21 and 67,231.16

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Solution

The fourth proportional to 91,113.20, 125,732.21 and 67,231.16 is: 92,776.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,113.20 : 125,732.21 = 67,231.16 : x
  2. Step 2: Convert to fraction form
    91,113.20/125,732.21 = 67,231.16/x
  3. Step 3: Cross multiply
    91,113.20x = 125,732.21 × 67,231.16
  4. Step 4: Simplify right side
    91,113.20x = 8,453,121,362.85
  5. Step 5: Solve for x
    x = 8,453,121,362.85/91,113.20
  6. Step 6: Final answer
    x = 92,776.04

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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.