Home / 87,872.35-121,264.19-47,586.13

Finding the Fourth Proportional to 87,872.35, 121,264.19 and 47,586.13

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Solution

The fourth proportional to 87,872.35, 121,264.19 and 47,586.13 is: 65,669.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,872.35 : 121,264.19 = 47,586.13 : x
  2. Step 2: Convert to fraction form
    87,872.35/121,264.19 = 47,586.13/x
  3. Step 3: Cross multiply
    87,872.35x = 121,264.19 × 47,586.13
  4. Step 4: Simplify right side
    87,872.35x = 5,770,493,509.68
  5. Step 5: Solve for x
    x = 5,770,493,509.68/87,872.35
  6. Step 6: Final answer
    x = 65,669.05

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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.