Home / 42,121.66-63,137.10-22,380.34

Finding the Fourth Proportional to 42,121.66, 63,137.10 and 22,380.34

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Solution

The fourth proportional to 42,121.66, 63,137.10 and 22,380.34 is: 33,546.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,121.66 : 63,137.10 = 22,380.34 : x
  2. Step 2: Convert to fraction form
    42,121.66/63,137.10 = 22,380.34/x
  3. Step 3: Cross multiply
    42,121.66x = 63,137.10 × 22,380.34
  4. Step 4: Simplify right side
    42,121.66x = 1,413,029,764.61
  5. Step 5: Solve for x
    x = 1,413,029,764.61/42,121.66
  6. Step 6: Final answer
    x = 33,546.39

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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.