Home / 91,276.74-125,961.89-50,990.49

Finding the Fourth Proportional to 91,276.74, 125,961.89 and 50,990.49

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Solution

The fourth proportional to 91,276.74, 125,961.89 and 50,990.49 is: 70,366.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,276.74 : 125,961.89 = 50,990.49 : x
  2. Step 2: Convert to fraction form
    91,276.74/125,961.89 = 50,990.49/x
  3. Step 3: Cross multiply
    91,276.74x = 125,961.89 × 50,990.49
  4. Step 4: Simplify right side
    91,276.74x = 6,422,858,237.47
  5. Step 5: Solve for x
    x = 6,422,858,237.47/91,276.74
  6. Step 6: Final answer
    x = 70,366.87

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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.