Home / 87,794.49-121,169.09-57,624.83

Finding the Fourth Proportional to 87,794.49, 121,169.09 and 57,624.83

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Solution

The fourth proportional to 87,794.49, 121,169.09 and 57,624.83 is: 79,530.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,794.49 : 121,169.09 = 57,624.83 : x
  2. Step 2: Convert to fraction form
    87,794.49/121,169.09 = 57,624.83/x
  3. Step 3: Cross multiply
    87,794.49x = 121,169.09 × 57,624.83
  4. Step 4: Simplify right side
    87,794.49x = 6,982,347,318.54
  5. Step 5: Solve for x
    x = 6,982,347,318.54/87,794.49
  6. Step 6: Final answer
    x = 79,530.59

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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.