Home / 48,189.62-72,275.72-13,121.08

Finding the Fourth Proportional to 48,189.62, 72,275.72 and 13,121.08

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Solution

The fourth proportional to 48,189.62, 72,275.72 and 13,121.08 is: 19,679.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,189.62 : 72,275.72 = 13,121.08 : x
  2. Step 2: Convert to fraction form
    48,189.62/72,275.72 = 13,121.08/x
  3. Step 3: Cross multiply
    48,189.62x = 72,275.72 × 13,121.08
  4. Step 4: Simplify right side
    48,189.62x = 948,335,257.88
  5. Step 5: Solve for x
    x = 948,335,257.88/48,189.62
  6. Step 6: Final answer
    x = 19,679.24

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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.