Home / 42,215.85-63,278.19-27,435.38

Finding the Fourth Proportional to 42,215.85, 63,278.19 and 27,435.38

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Solution

The fourth proportional to 42,215.85, 63,278.19 and 27,435.38 is: 41,123.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,215.85 : 63,278.19 = 27,435.38 : x
  2. Step 2: Convert to fraction form
    42,215.85/63,278.19 = 27,435.38/x
  3. Step 3: Cross multiply
    42,215.85x = 63,278.19 × 27,435.38
  4. Step 4: Simplify right side
    42,215.85x = 1,736,060,871.97
  5. Step 5: Solve for x
    x = 1,736,060,871.97/42,215.85
  6. Step 6: Final answer
    x = 41,123.44

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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.