Home / 87,607.80-131,457.60-40,237.20

Finding the Fourth Proportional to 87,607.80, 131,457.60 and 40,237.20

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Solution

The fourth proportional to 87,607.80, 131,457.60 and 40,237.20 is: 60,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,607.80 : 131,457.60 = 40,237.20 : x
  2. Step 2: Convert to fraction form
    87,607.80/131,457.60 = 40,237.20/x
  3. Step 3: Cross multiply
    87,607.80x = 131,457.60 × 40,237.20
  4. Step 4: Simplify right side
    87,607.80x = 5,289,485,742.72
  5. Step 5: Solve for x
    x = 5,289,485,742.72/87,607.80
  6. Step 6: Final answer
    x = 60,376.88

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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.