Home / 91,769.80-126,639.78-54,046.60

Finding the Fourth Proportional to 91,769.80, 126,639.78 and 54,046.60

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Solution

The fourth proportional to 91,769.80, 126,639.78 and 54,046.60 is: 74,582.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,769.80 : 126,639.78 = 54,046.60 : x
  2. Step 2: Convert to fraction form
    91,769.80/126,639.78 = 54,046.60/x
  3. Step 3: Cross multiply
    91,769.80x = 126,639.78 × 54,046.60
  4. Step 4: Simplify right side
    91,769.80x = 6,844,449,533.75
  5. Step 5: Solve for x
    x = 6,844,449,533.75/91,769.80
  6. Step 6: Final answer
    x = 74,582.81

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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.