Home / 87,784.62-121,142.63-49,552.22

Finding the Fourth Proportional to 87,784.62, 121,142.63 and 49,552.22

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Solution

The fourth proportional to 87,784.62, 121,142.63 and 49,552.22 is: 68,381.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,784.62 : 121,142.63 = 49,552.22 : x
  2. Step 2: Convert to fraction form
    87,784.62/121,142.63 = 49,552.22/x
  3. Step 3: Cross multiply
    87,784.62x = 121,142.63 × 49,552.22
  4. Step 4: Simplify right side
    87,784.62x = 6,002,886,253.14
  5. Step 5: Solve for x
    x = 6,002,886,253.14/87,784.62
  6. Step 6: Final answer
    x = 68,381.98

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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.