Home / 48,037.20-72,136.80-40,131.60

Finding the Fourth Proportional to 48,037.20, 72,136.80 and 40,131.60

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Solution

The fourth proportional to 48,037.20, 72,136.80 and 40,131.60 is: 60,265.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,037.20 : 72,136.80 = 40,131.60 : x
  2. Step 2: Convert to fraction form
    48,037.20/72,136.80 = 40,131.60/x
  3. Step 3: Cross multiply
    48,037.20x = 72,136.80 × 40,131.60
  4. Step 4: Simplify right side
    48,037.20x = 2,894,965,202.88
  5. Step 5: Solve for x
    x = 2,894,965,202.88/48,037.20
  6. Step 6: Final answer
    x = 60,265.07

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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.