Home / 91,910.57-126,836.42-53,696.39

Finding the Fourth Proportional to 91,910.57, 126,836.42 and 53,696.39

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Solution

The fourth proportional to 91,910.57, 126,836.42 and 53,696.39 is: 74,100.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,910.57 : 126,836.42 = 53,696.39 : x
  2. Step 2: Convert to fraction form
    91,910.57/126,836.42 = 53,696.39/x
  3. Step 3: Cross multiply
    91,910.57x = 126,836.42 × 53,696.39
  4. Step 4: Simplify right side
    91,910.57x = 6,810,656,971.86
  5. Step 5: Solve for x
    x = 6,810,656,971.86/91,910.57
  6. Step 6: Final answer
    x = 74,100.92

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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.