Home / 71,310.44-106,961.34-18,718.76

Finding the Fourth Proportional to 71,310.44, 106,961.34 and 18,718.76

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Solution

The fourth proportional to 71,310.44, 106,961.34 and 18,718.76 is: 28,077.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,310.44 : 106,961.34 = 18,718.76 : x
  2. Step 2: Convert to fraction form
    71,310.44/106,961.34 = 18,718.76/x
  3. Step 3: Cross multiply
    71,310.44x = 106,961.34 × 18,718.76
  4. Step 4: Simplify right side
    71,310.44x = 2,002,183,652.74
  5. Step 5: Solve for x
    x = 2,002,183,652.74/71,310.44
  6. Step 6: Final answer
    x = 28,077.01

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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.