Home / 87,499.20-131,248.80-48,133.20

Finding the Fourth Proportional to 87,499.20, 131,248.80 and 48,133.20

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Solution

The fourth proportional to 87,499.20, 131,248.80 and 48,133.20 is: 72,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,499.20 : 131,248.80 = 48,133.20 : x
  2. Step 2: Convert to fraction form
    87,499.20/131,248.80 = 48,133.20/x
  3. Step 3: Cross multiply
    87,499.20x = 131,248.80 × 48,133.20
  4. Step 4: Simplify right side
    87,499.20x = 6,317,424,740.16
  5. Step 5: Solve for x
    x = 6,317,424,740.16/87,499.20
  6. Step 6: Final answer
    x = 72,199.80

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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.