Home / 83,512.88-125,268.24-20,333.12

Finding the Fourth Proportional to 83,512.88, 125,268.24 and 20,333.12

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Solution

The fourth proportional to 83,512.88, 125,268.24 and 20,333.12 is: 30,499.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,512.88 : 125,268.24 = 20,333.12 : x
  2. Step 2: Convert to fraction form
    83,512.88/125,268.24 = 20,333.12/x
  3. Step 3: Cross multiply
    83,512.88x = 125,268.24 × 20,333.12
  4. Step 4: Simplify right side
    83,512.88x = 2,547,094,156.11
  5. Step 5: Solve for x
    x = 2,547,094,156.11/83,512.88
  6. Step 6: Final answer
    x = 30,499.42

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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.