Home / 77,966.08-117,136.38-49,940.57

Finding the Fourth Proportional to 77,966.08, 117,136.38 and 49,940.57

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Solution

The fourth proportional to 77,966.08, 117,136.38 and 49,940.57 is: 75,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,966.08 : 117,136.38 = 49,940.57 : x
  2. Step 2: Convert to fraction form
    77,966.08/117,136.38 = 49,940.57/x
  3. Step 3: Cross multiply
    77,966.08x = 117,136.38 × 49,940.57
  4. Step 4: Simplify right side
    77,966.08x = 5,849,857,584.94
  5. Step 5: Solve for x
    x = 5,849,857,584.94/77,966.08
  6. Step 6: Final answer
    x = 75,030.80

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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.