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Finding the Fourth Proportional to 42,223.80, 63,335.70 and 11,062.20

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Solution

The fourth proportional to 42,223.80, 63,335.70 and 11,062.20 is: 16,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,223.80 : 63,335.70 = 11,062.20 : x
  2. Step 2: Convert to fraction form
    42,223.80/63,335.70 = 11,062.20/x
  3. Step 3: Cross multiply
    42,223.80x = 63,335.70 × 11,062.20
  4. Step 4: Simplify right side
    42,223.80x = 700,632,180.54
  5. Step 5: Solve for x
    x = 700,632,180.54/42,223.80
  6. Step 6: Final answer
    x = 16,593.30

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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.