Home / 48,474.20-72,711.30-48,128.60

Finding the Fourth Proportional to 48,474.20, 72,711.30 and 48,128.60

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Solution

The fourth proportional to 48,474.20, 72,711.30 and 48,128.60 is: 72,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,474.20 : 72,711.30 = 48,128.60 : x
  2. Step 2: Convert to fraction form
    48,474.20/72,711.30 = 48,128.60/x
  3. Step 3: Cross multiply
    48,474.20x = 72,711.30 × 48,128.60
  4. Step 4: Simplify right side
    48,474.20x = 3,499,493,073.18
  5. Step 5: Solve for x
    x = 3,499,493,073.18/48,474.20
  6. Step 6: Final answer
    x = 72,192.90

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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.