Home / 87,618.40-131,427.60-67,957.60

Finding the Fourth Proportional to 87,618.40, 131,427.60 and 67,957.60

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Solution

The fourth proportional to 87,618.40, 131,427.60 and 67,957.60 is: 101,936.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,618.40 : 131,427.60 = 67,957.60 : x
  2. Step 2: Convert to fraction form
    87,618.40/131,427.60 = 67,957.60/x
  3. Step 3: Cross multiply
    87,618.40x = 131,427.60 × 67,957.60
  4. Step 4: Simplify right side
    87,618.40x = 8,931,504,269.76
  5. Step 5: Solve for x
    x = 8,931,504,269.76/87,618.40
  6. Step 6: Final answer
    x = 101,936.40

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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.