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Finding the Fourth Proportional to 80,497.28, 111,081 and 44,687.36

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Solution

The fourth proportional to 80,497.28, 111,081 and 44,687.36 is: 61,665.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,497.28 : 111,081 = 44,687.36 : x
  2. Step 2: Convert to fraction form
    80,497.28/111,081 = 44,687.36/x
  3. Step 3: Cross multiply
    80,497.28x = 111,081 × 44,687.36
  4. Step 4: Simplify right side
    80,497.28x = 4,963,916,636.16
  5. Step 5: Solve for x
    x = 4,963,916,636.16/80,497.28
  6. Step 6: Final answer
    x = 61,665.64

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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.