Home / 65,747.70-98,621.55-21,375.90

Finding the Fourth Proportional to 65,747.70, 98,621.55 and 21,375.90

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Solution

The fourth proportional to 65,747.70, 98,621.55 and 21,375.90 is: 32,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,747.70 : 98,621.55 = 21,375.90 : x
  2. Step 2: Convert to fraction form
    65,747.70/98,621.55 = 21,375.90/x
  3. Step 3: Cross multiply
    65,747.70x = 98,621.55 × 21,375.90
  4. Step 4: Simplify right side
    65,747.70x = 2,108,124,390.65
  5. Step 5: Solve for x
    x = 2,108,124,390.65/65,747.70
  6. Step 6: Final answer
    x = 32,063.85

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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.