Home / 91,805.20-126,696.76-51,521.54

Finding the Fourth Proportional to 91,805.20, 126,696.76 and 51,521.54

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Solution

The fourth proportional to 91,805.20, 126,696.76 and 51,521.54 is: 71,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,805.20 : 126,696.76 = 51,521.54 : x
  2. Step 2: Convert to fraction form
    91,805.20/126,696.76 = 51,521.54/x
  3. Step 3: Cross multiply
    91,805.20x = 126,696.76 × 51,521.54
  4. Step 4: Simplify right side
    91,805.20x = 6,527,611,425.92
  5. Step 5: Solve for x
    x = 6,527,611,425.92/91,805.20
  6. Step 6: Final answer
    x = 71,102.85

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1.5x scale

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.