Home / 65,760.18-98,645.68-21,385.96

Finding the Fourth Proportional to 65,760.18, 98,645.68 and 21,385.96

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Solution

The fourth proportional to 65,760.18, 98,645.68 and 21,385.96 is: 32,080.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,760.18 : 98,645.68 = 21,385.96 : x
  2. Step 2: Convert to fraction form
    65,760.18/98,645.68 = 21,385.96/x
  3. Step 3: Cross multiply
    65,760.18x = 98,645.68 × 21,385.96
  4. Step 4: Simplify right side
    65,760.18x = 2,109,632,566.65
  5. Step 5: Solve for x
    x = 2,109,632,566.65/65,760.18
  6. Step 6: Final answer
    x = 32,080.70

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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.