Home / 77,474.27-116,196.11-21,299.90

Finding the Fourth Proportional to 77,474.27, 116,196.11 and 21,299.90

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Solution

The fourth proportional to 77,474.27, 116,196.11 and 21,299.90 is: 31,945.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,474.27 : 116,196.11 = 21,299.90 : x
  2. Step 2: Convert to fraction form
    77,474.27/116,196.11 = 21,299.90/x
  3. Step 3: Cross multiply
    77,474.27x = 116,196.11 × 21,299.90
  4. Step 4: Simplify right side
    77,474.27x = 2,474,964,915.78
  5. Step 5: Solve for x
    x = 2,474,964,915.78/77,474.27
  6. Step 6: Final answer
    x = 31,945.64

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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.