Home / 65,849.11-98,776.84-21,475.78

Finding the Fourth Proportional to 65,849.11, 98,776.84 and 21,475.78

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Solution

The fourth proportional to 65,849.11, 98,776.84 and 21,475.78 is: 32,214.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,849.11 : 98,776.84 = 21,475.78 : x
  2. Step 2: Convert to fraction form
    65,849.11/98,776.84 = 21,475.78/x
  3. Step 3: Cross multiply
    65,849.11x = 98,776.84 × 21,475.78
  4. Step 4: Simplify right side
    65,849.11x = 2,121,309,684.94
  5. Step 5: Solve for x
    x = 2,121,309,684.94/65,849.11
  6. Step 6: Final answer
    x = 32,214.71

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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.