Home / 71,188.56-106,812.30-31,186.86

Finding the Fourth Proportional to 71,188.56, 106,812.30 and 31,186.86

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Solution

The fourth proportional to 71,188.56, 106,812.30 and 31,186.86 is: 46,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,188.56 : 106,812.30 = 31,186.86 : x
  2. Step 2: Convert to fraction form
    71,188.56/106,812.30 = 31,186.86/x
  3. Step 3: Cross multiply
    71,188.56x = 106,812.30 × 31,186.86
  4. Step 4: Simplify right side
    71,188.56x = 3,331,140,246.38
  5. Step 5: Solve for x
    x = 3,331,140,246.38/71,188.56
  6. Step 6: Final answer
    x = 46,793.20

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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.