Home / 87,805.33-121,176.86-49,571.35

Finding the Fourth Proportional to 87,805.33, 121,176.86 and 49,571.35

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Solution

The fourth proportional to 87,805.33, 121,176.86 and 49,571.35 is: 68,411.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,805.33 : 121,176.86 = 49,571.35 : x
  2. Step 2: Convert to fraction form
    87,805.33/121,176.86 = 49,571.35/x
  3. Step 3: Cross multiply
    87,805.33x = 121,176.86 × 49,571.35
  4. Step 4: Simplify right side
    87,805.33x = 6,006,899,988.16
  5. Step 5: Solve for x
    x = 6,006,899,988.16/87,805.33
  6. Step 6: Final answer
    x = 68,411.57

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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.