Home / 48,748.10-73,121.81-13,687.79

Finding the Fourth Proportional to 48,748.10, 73,121.81 and 13,687.79

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Solution

The fourth proportional to 48,748.10, 73,121.81 and 13,687.79 is: 20,531.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,748.10 : 73,121.81 = 13,687.79 : x
  2. Step 2: Convert to fraction form
    48,748.10/73,121.81 = 13,687.79/x
  3. Step 3: Cross multiply
    48,748.10x = 73,121.81 × 13,687.79
  4. Step 4: Simplify right side
    48,748.10x = 1,000,875,545.65
  5. Step 5: Solve for x
    x = 1,000,875,545.65/48,748.10
  6. Step 6: Final answer
    x = 20,531.58

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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.