Home / 83,470.16-125,204.10-20,290.10

Finding the Fourth Proportional to 83,470.16, 125,204.10 and 20,290.10

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Solution

The fourth proportional to 83,470.16, 125,204.10 and 20,290.10 is: 30,434.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,470.16 : 125,204.10 = 20,290.10 : x
  2. Step 2: Convert to fraction form
    83,470.16/125,204.10 = 20,290.10/x
  3. Step 3: Cross multiply
    83,470.16x = 125,204.10 × 20,290.10
  4. Step 4: Simplify right side
    83,470.16x = 2,540,403,083.39
  5. Step 5: Solve for x
    x = 2,540,403,083.39/83,470.16
  6. Step 6: Final answer
    x = 30,434.87

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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.