Home / 91,834.59-126,721.98-51,552.78

Finding the Fourth Proportional to 91,834.59, 126,721.98 and 51,552.78

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Solution

The fourth proportional to 91,834.59, 126,721.98 and 51,552.78 is: 71,137.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,834.59 : 126,721.98 = 51,552.78 : x
  2. Step 2: Convert to fraction form
    91,834.59/126,721.98 = 51,552.78/x
  3. Step 3: Cross multiply
    91,834.59x = 126,721.98 × 51,552.78
  4. Step 4: Simplify right side
    91,834.59x = 6,532,870,356.10
  5. Step 5: Solve for x
    x = 6,532,870,356.10/91,834.59
  6. Step 6: Final answer
    x = 71,137.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.