Home / 56,864.97-85,278.39-18,905.48

Finding the Fourth Proportional to 56,864.97, 85,278.39 and 18,905.48

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Solution

The fourth proportional to 56,864.97, 85,278.39 and 18,905.48 is: 28,351.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,864.97 : 85,278.39 = 18,905.48 : x
  2. Step 2: Convert to fraction form
    56,864.97/85,278.39 = 18,905.48/x
  3. Step 3: Cross multiply
    56,864.97x = 85,278.39 × 18,905.48
  4. Step 4: Simplify right side
    56,864.97x = 1,612,229,180.67
  5. Step 5: Solve for x
    x = 1,612,229,180.67/56,864.97
  6. Step 6: Final answer
    x = 28,351.89

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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.