Home / 87,786.59-121,144.63-47,499.47

Finding the Fourth Proportional to 87,786.59, 121,144.63 and 47,499.47

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Solution

The fourth proportional to 87,786.59, 121,144.63 and 47,499.47 is: 65,548.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,786.59 : 121,144.63 = 47,499.47 : x
  2. Step 2: Convert to fraction form
    87,786.59/121,144.63 = 47,499.47/x
  3. Step 3: Cross multiply
    87,786.59x = 121,144.63 × 47,499.47
  4. Step 4: Simplify right side
    87,786.59x = 5,754,305,718.35
  5. Step 5: Solve for x
    x = 5,754,305,718.35/87,786.59
  6. Step 6: Final answer
    x = 65,548.80

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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.