Home / 83,449.90-125,173.45-20,270.53

Finding the Fourth Proportional to 83,449.90, 125,173.45 and 20,270.53

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Solution

The fourth proportional to 83,449.90, 125,173.45 and 20,270.53 is: 30,405.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,449.90 : 125,173.45 = 20,270.53 : x
  2. Step 2: Convert to fraction form
    83,449.90/125,173.45 = 20,270.53/x
  3. Step 3: Cross multiply
    83,449.90x = 125,173.45 × 20,270.53
  4. Step 4: Simplify right side
    83,449.90x = 2,537,332,173.43
  5. Step 5: Solve for x
    x = 2,537,332,173.43/83,449.90
  6. Step 6: Final answer
    x = 30,405.45

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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.