Home / 83,399.64-125,112.39-28,008.60

Finding the Fourth Proportional to 83,399.64, 125,112.39 and 28,008.60

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Solution

The fourth proportional to 83,399.64, 125,112.39 and 28,008.60 is: 42,017.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,399.64 : 125,112.39 = 28,008.60 : x
  2. Step 2: Convert to fraction form
    83,399.64/125,112.39 = 28,008.60/x
  3. Step 3: Cross multiply
    83,399.64x = 125,112.39 × 28,008.60
  4. Step 4: Simplify right side
    83,399.64x = 3,504,222,886.55
  5. Step 5: Solve for x
    x = 3,504,222,886.55/83,399.64
  6. Step 6: Final answer
    x = 42,017.24

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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.