Home / 57,512.46-86,121.81-45,842.70

Finding the Fourth Proportional to 57,512.46, 86,121.81 and 45,842.70

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Solution

The fourth proportional to 57,512.46, 86,121.81 and 45,842.70 is: 68,646.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,512.46 : 86,121.81 = 45,842.70 : x
  2. Step 2: Convert to fraction form
    57,512.46/86,121.81 = 45,842.70/x
  3. Step 3: Cross multiply
    57,512.46x = 86,121.81 × 45,842.70
  4. Step 4: Simplify right side
    57,512.46x = 3,948,056,299.29
  5. Step 5: Solve for x
    x = 3,948,056,299.29/57,512.46
  6. Step 6: Final answer
    x = 68,646.97

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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.