Home / 48,221.78-72,344.22-20,126.22

Finding the Fourth Proportional to 48,221.78, 72,344.22 and 20,126.22

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Solution

The fourth proportional to 48,221.78, 72,344.22 and 20,126.22 is: 30,194.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,221.78 : 72,344.22 = 20,126.22 : x
  2. Step 2: Convert to fraction form
    48,221.78/72,344.22 = 20,126.22/x
  3. Step 3: Cross multiply
    48,221.78x = 72,344.22 × 20,126.22
  4. Step 4: Simplify right side
    48,221.78x = 1,456,015,687.45
  5. Step 5: Solve for x
    x = 1,456,015,687.45/48,221.78
  6. Step 6: Final answer
    x = 30,194.15

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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.