Home / 51,251.60-70,722.32-28,588.82

Finding the Fourth Proportional to 51,251.60, 70,722.32 and 28,588.82

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Solution

The fourth proportional to 51,251.60, 70,722.32 and 28,588.82 is: 39,449.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,251.60 : 70,722.32 = 28,588.82 : x
  2. Step 2: Convert to fraction form
    51,251.60/70,722.32 = 28,588.82/x
  3. Step 3: Cross multiply
    51,251.60x = 70,722.32 × 28,588.82
  4. Step 4: Simplify right side
    51,251.60x = 2,021,867,179.91
  5. Step 5: Solve for x
    x = 2,021,867,179.91/51,251.60
  6. Step 6: Final answer
    x = 39,449.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.