Home / 48,721.20-73,081.80-13,666.80

Finding the Fourth Proportional to 48,721.20, 73,081.80 and 13,666.80

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Solution

The fourth proportional to 48,721.20, 73,081.80 and 13,666.80 is: 20,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,721.20 : 73,081.80 = 13,666.80 : x
  2. Step 2: Convert to fraction form
    48,721.20/73,081.80 = 13,666.80/x
  3. Step 3: Cross multiply
    48,721.20x = 73,081.80 × 13,666.80
  4. Step 4: Simplify right side
    48,721.20x = 998,794,344.24
  5. Step 5: Solve for x
    x = 998,794,344.24/48,721.20
  6. Step 6: Final answer
    x = 20,500.20

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1.5x scale

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.