Home / 42,877.82-64,305.11-17,912.64

Finding the Fourth Proportional to 42,877.82, 64,305.11 and 17,912.64

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Solution

The fourth proportional to 42,877.82, 64,305.11 and 17,912.64 is: 26,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,877.82 : 64,305.11 = 17,912.64 : x
  2. Step 2: Convert to fraction form
    42,877.82/64,305.11 = 17,912.64/x
  3. Step 3: Cross multiply
    42,877.82x = 64,305.11 × 17,912.64
  4. Step 4: Simplify right side
    42,877.82x = 1,151,874,508.54
  5. Step 5: Solve for x
    x = 1,151,874,508.54/42,877.82
  6. Step 6: Final answer
    x = 26,864.11

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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.