Home / 71,309.19-106,861.71-40,078.83

Finding the Fourth Proportional to 71,309.19, 106,861.71 and 40,078.83

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Solution

The fourth proportional to 71,309.19, 106,861.71 and 40,078.83 is: 60,060.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,309.19 : 106,861.71 = 40,078.83 : x
  2. Step 2: Convert to fraction form
    71,309.19/106,861.71 = 40,078.83/x
  3. Step 3: Cross multiply
    71,309.19x = 106,861.71 × 40,078.83
  4. Step 4: Simplify right side
    71,309.19x = 4,282,892,308.60
  5. Step 5: Solve for x
    x = 4,282,892,308.60/71,309.19
  6. Step 6: Final answer
    x = 60,060.87

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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.