Home / 80,968.97-111,737.36-45,161.28

Finding the Fourth Proportional to 80,968.97, 111,737.36 and 45,161.28

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Solution

The fourth proportional to 80,968.97, 111,737.36 and 45,161.28 is: 62,322.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,968.97 : 111,737.36 = 45,161.28 : x
  2. Step 2: Convert to fraction form
    80,968.97/111,737.36 = 45,161.28/x
  3. Step 3: Cross multiply
    80,968.97x = 111,737.36 × 45,161.28
  4. Step 4: Simplify right side
    80,968.97x = 5,046,202,722.21
  5. Step 5: Solve for x
    x = 5,046,202,722.21/80,968.97
  6. Step 6: Final answer
    x = 62,322.68

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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.