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Finding the Fourth Proportional to 80,614.44, 111,209.22 and 69,417

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Solution

The fourth proportional to 80,614.44, 111,209.22 and 69,417 is: 95,762.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,614.44 : 111,209.22 = 69,417 : x
  2. Step 2: Convert to fraction form
    80,614.44/111,209.22 = 69,417/x
  3. Step 3: Cross multiply
    80,614.44x = 111,209.22 × 69,417
  4. Step 4: Simplify right side
    80,614.44x = 7,719,810,424.74
  5. Step 5: Solve for x
    x = 7,719,810,424.74/80,614.44
  6. Step 6: Final answer
    x = 95,762.13

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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.