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Finding the Fourth Proportional to 80,218.47, 110,666.72 and 48,369.67

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Solution

The fourth proportional to 80,218.47, 110,666.72 and 48,369.67 is: 66,729.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,218.47 : 110,666.72 = 48,369.67 : x
  2. Step 2: Convert to fraction form
    80,218.47/110,666.72 = 48,369.67/x
  3. Step 3: Cross multiply
    80,218.47x = 110,666.72 × 48,369.67
  4. Step 4: Simplify right side
    80,218.47x = 5,352,912,726.38
  5. Step 5: Solve for x
    x = 5,352,912,726.38/80,218.47
  6. Step 6: Final answer
    x = 66,729.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.