Home / 43,976.28-65,979-29,243.20

Finding the Fourth Proportional to 43,976.28, 65,979 and 29,243.20

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Solution

The fourth proportional to 43,976.28, 65,979 and 29,243.20 is: 43,874.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,976.28 : 65,979 = 29,243.20 : x
  2. Step 2: Convert to fraction form
    43,976.28/65,979 = 29,243.20/x
  3. Step 3: Cross multiply
    43,976.28x = 65,979 × 29,243.20
  4. Step 4: Simplify right side
    43,976.28x = 1,929,437,092.80
  5. Step 5: Solve for x
    x = 1,929,437,092.80/43,976.28
  6. Step 6: Final answer
    x = 43,874.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.