Home / 57,141.60-78,814.92-49,170.12

Finding the Fourth Proportional to 57,141.60, 78,814.92 and 49,170.12

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Solution

The fourth proportional to 57,141.60, 78,814.92 and 49,170.12 is: 67,819.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,141.60 : 78,814.92 = 49,170.12 : x
  2. Step 2: Convert to fraction form
    57,141.60/78,814.92 = 49,170.12/x
  3. Step 3: Cross multiply
    57,141.60x = 78,814.92 × 49,170.12
  4. Step 4: Simplify right side
    57,141.60x = 3,875,339,074.19
  5. Step 5: Solve for x
    x = 3,875,339,074.19/57,141.60
  6. Step 6: Final answer
    x = 67,819.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.