Home / 57,731.10-86,596.65-51,279.90

Finding the Fourth Proportional to 57,731.10, 86,596.65 and 51,279.90

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Solution

The fourth proportional to 57,731.10, 86,596.65 and 51,279.90 is: 76,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,731.10 : 86,596.65 = 51,279.90 : x
  2. Step 2: Convert to fraction form
    57,731.10/86,596.65 = 51,279.90/x
  3. Step 3: Cross multiply
    57,731.10x = 86,596.65 × 51,279.90
  4. Step 4: Simplify right side
    57,731.10x = 4,440,667,552.34
  5. Step 5: Solve for x
    x = 4,440,667,552.34/57,731.10
  6. Step 6: Final answer
    x = 76,919.85

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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.