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Finding the Fourth Proportional to 91,033.74, 125,630.80 and 50,747.78

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Solution

The fourth proportional to 91,033.74, 125,630.80 and 50,747.78 is: 70,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,033.74 : 125,630.80 = 50,747.78 : x
  2. Step 2: Convert to fraction form
    91,033.74/125,630.80 = 50,747.78/x
  3. Step 3: Cross multiply
    91,033.74x = 125,630.80 × 50,747.78
  4. Step 4: Simplify right side
    91,033.74x = 6,375,484,199.62
  5. Step 5: Solve for x
    x = 6,375,484,199.62/91,033.74
  6. Step 6: Final answer
    x = 70,034.30

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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.