Home / 80,891.24-111,628.10-45,080.60

Finding the Fourth Proportional to 80,891.24, 111,628.10 and 45,080.60

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Solution

The fourth proportional to 80,891.24, 111,628.10 and 45,080.60 is: 62,210.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,891.24 : 111,628.10 = 45,080.60 : x
  2. Step 2: Convert to fraction form
    80,891.24/111,628.10 = 45,080.60/x
  3. Step 3: Cross multiply
    80,891.24x = 111,628.10 × 45,080.60
  4. Step 4: Simplify right side
    80,891.24x = 5,032,261,724.86
  5. Step 5: Solve for x
    x = 5,032,261,724.86/80,891.24
  6. Step 6: Final answer
    x = 62,210.22

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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.