Home / 87,836.09-121,213.78-47,549.82

Finding the Fourth Proportional to 87,836.09, 121,213.78 and 47,549.82

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Solution

The fourth proportional to 87,836.09, 121,213.78 and 47,549.82 is: 65,618.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,836.09 : 121,213.78 = 47,549.82 : x
  2. Step 2: Convert to fraction form
    87,836.09/121,213.78 = 47,549.82/x
  3. Step 3: Cross multiply
    87,836.09x = 121,213.78 × 47,549.82
  4. Step 4: Simplify right side
    87,836.09x = 5,763,693,246.47
  5. Step 5: Solve for x
    x = 5,763,693,246.47/87,836.09
  6. Step 6: Final answer
    x = 65,618.74

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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.