Home / 83,491.94-124,942.28-51,916.87

Finding the Fourth Proportional to 83,491.94, 124,942.28 and 51,916.87

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Solution

The fourth proportional to 83,491.94, 124,942.28 and 51,916.87 is: 77,691.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,491.94 : 124,942.28 = 51,916.87 : x
  2. Step 2: Convert to fraction form
    83,491.94/124,942.28 = 51,916.87/x
  3. Step 3: Cross multiply
    83,491.94x = 124,942.28 × 51,916.87
  4. Step 4: Simplify right side
    83,491.94x = 6,486,611,867.93
  5. Step 5: Solve for x
    x = 6,486,611,867.93/83,491.94
  6. Step 6: Final answer
    x = 77,691.47

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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.