Home / 56,286.25-84,429.35-21,217.70

Finding the Fourth Proportional to 56,286.25, 84,429.35 and 21,217.70

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Solution

The fourth proportional to 56,286.25, 84,429.35 and 21,217.70 is: 31,826.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,286.25 : 84,429.35 = 21,217.70 : x
  2. Step 2: Convert to fraction form
    56,286.25/84,429.35 = 21,217.70/x
  3. Step 3: Cross multiply
    56,286.25x = 84,429.35 × 21,217.70
  4. Step 4: Simplify right side
    56,286.25x = 1,791,396,883.61
  5. Step 5: Solve for x
    x = 1,791,396,883.61/56,286.25
  6. Step 6: Final answer
    x = 31,826.55

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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.