Home / 87,786.84-121,144.97-47,499.71

Finding the Fourth Proportional to 87,786.84, 121,144.97 and 47,499.71

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Solution

The fourth proportional to 87,786.84, 121,144.97 and 47,499.71 is: 65,549.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,786.84 : 121,144.97 = 47,499.71 : x
  2. Step 2: Convert to fraction form
    87,786.84/121,144.97 = 47,499.71/x
  3. Step 3: Cross multiply
    87,786.84x = 121,144.97 × 47,499.71
  4. Step 4: Simplify right side
    87,786.84x = 5,754,350,099.74
  5. Step 5: Solve for x
    x = 5,754,350,099.74/87,786.84
  6. Step 6: Final answer
    x = 65,549.12

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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.