Home / 48,002.20-72,003.30-42,299.80

Finding the Fourth Proportional to 48,002.20, 72,003.30 and 42,299.80

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Solution

The fourth proportional to 48,002.20, 72,003.30 and 42,299.80 is: 63,449.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,002.20 : 72,003.30 = 42,299.80 : x
  2. Step 2: Convert to fraction form
    48,002.20/72,003.30 = 42,299.80/x
  3. Step 3: Cross multiply
    48,002.20x = 72,003.30 × 42,299.80
  4. Step 4: Simplify right side
    48,002.20x = 3,045,725,189.34
  5. Step 5: Solve for x
    x = 3,045,725,189.34/48,002.20
  6. Step 6: Final answer
    x = 63,449.70

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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.