Home / 87,804.14-121,169.72-47,517.91

Finding the Fourth Proportional to 87,804.14, 121,169.72 and 47,517.91

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Solution

The fourth proportional to 87,804.14, 121,169.72 and 47,517.91 is: 65,574.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,804.14 : 121,169.72 = 47,517.91 : x
  2. Step 2: Convert to fraction form
    87,804.14/121,169.72 = 47,517.91/x
  3. Step 3: Cross multiply
    87,804.14x = 121,169.72 × 47,517.91
  4. Step 4: Simplify right side
    87,804.14x = 5,757,731,006.25
  5. Step 5: Solve for x
    x = 5,757,731,006.25/87,804.14
  6. Step 6: Final answer
    x = 65,574.71

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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.