Home / 91,469.85-126,188.85-64,635.36

Finding the Fourth Proportional to 91,469.85, 126,188.85 and 64,635.36

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Solution

The fourth proportional to 91,469.85, 126,188.85 and 64,635.36 is: 89,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,469.85 : 126,188.85 = 64,635.36 : x
  2. Step 2: Convert to fraction form
    91,469.85/126,188.85 = 64,635.36/x
  3. Step 3: Cross multiply
    91,469.85x = 126,188.85 × 64,635.36
  4. Step 4: Simplify right side
    91,469.85x = 8,156,261,116.79
  5. Step 5: Solve for x
    x = 8,156,261,116.79/91,469.85
  6. Step 6: Final answer
    x = 89,168.85

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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.