Home / 43,081.14-64,625.20-11,916.38

Finding the Fourth Proportional to 43,081.14, 64,625.20 and 11,916.38

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Solution

The fourth proportional to 43,081.14, 64,625.20 and 11,916.38 is: 17,875.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,081.14 : 64,625.20 = 11,916.38 : x
  2. Step 2: Convert to fraction form
    43,081.14/64,625.20 = 11,916.38/x
  3. Step 3: Cross multiply
    43,081.14x = 64,625.20 × 11,916.38
  4. Step 4: Simplify right side
    43,081.14x = 770,098,440.78
  5. Step 5: Solve for x
    x = 770,098,440.78/43,081.14
  6. Step 6: Final answer
    x = 17,875.54

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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.