Home / 40,916.52-61,242.78-21,167.88

Finding the Fourth Proportional to 40,916.52, 61,242.78 and 21,167.88

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Solution

The fourth proportional to 40,916.52, 61,242.78 and 21,167.88 is: 31,683.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,916.52 : 61,242.78 = 21,167.88 : x
  2. Step 2: Convert to fraction form
    40,916.52/61,242.78 = 21,167.88/x
  3. Step 3: Cross multiply
    40,916.52x = 61,242.78 × 21,167.88
  4. Step 4: Simplify right side
    40,916.52x = 1,296,379,817.91
  5. Step 5: Solve for x
    x = 1,296,379,817.91/40,916.52
  6. Step 6: Final answer
    x = 31,683.53

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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.