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Finding the Fourth Proportional to 80,279.80, 110,681.09 and 69,069.71

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Solution

The fourth proportional to 80,279.80, 110,681.09 and 69,069.71 is: 95,225.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,279.80 : 110,681.09 = 69,069.71 : x
  2. Step 2: Convert to fraction form
    80,279.80/110,681.09 = 69,069.71/x
  3. Step 3: Cross multiply
    80,279.80x = 110,681.09 × 69,069.71
  4. Step 4: Simplify right side
    80,279.80x = 7,644,710,356.57
  5. Step 5: Solve for x
    x = 7,644,710,356.57/80,279.80
  6. Step 6: Final answer
    x = 95,225.83

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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.