Home / 77,424.28-116,136.15-21,264.43

Finding the Fourth Proportional to 77,424.28, 116,136.15 and 21,264.43

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Solution

The fourth proportional to 77,424.28, 116,136.15 and 21,264.43 is: 31,896.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,424.28 : 116,136.15 = 21,264.43 : x
  2. Step 2: Convert to fraction form
    77,424.28/116,136.15 = 21,264.43/x
  3. Step 3: Cross multiply
    77,424.28x = 116,136.15 × 21,264.43
  4. Step 4: Simplify right side
    77,424.28x = 2,469,569,032.14
  5. Step 5: Solve for x
    x = 2,469,569,032.14/77,424.28
  6. Step 6: Final answer
    x = 31,896.57

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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.