Home / 83,453.76-125,181.18-21,124.26

Finding the Fourth Proportional to 83,453.76, 125,181.18 and 21,124.26

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Solution

The fourth proportional to 83,453.76, 125,181.18 and 21,124.26 is: 31,686.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,453.76 : 125,181.18 = 21,124.26 : x
  2. Step 2: Convert to fraction form
    83,453.76/125,181.18 = 21,124.26/x
  3. Step 3: Cross multiply
    83,453.76x = 125,181.18 × 21,124.26
  4. Step 4: Simplify right side
    83,453.76x = 2,644,359,793.43
  5. Step 5: Solve for x
    x = 2,644,359,793.43/83,453.76
  6. Step 6: Final answer
    x = 31,686.53

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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.