Home / 87,682.98-121,003.72-51,872.06

Finding the Fourth Proportional to 87,682.98, 121,003.72 and 51,872.06

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Solution

The fourth proportional to 87,682.98, 121,003.72 and 51,872.06 is: 71,584.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,682.98 : 121,003.72 = 51,872.06 : x
  2. Step 2: Convert to fraction form
    87,682.98/121,003.72 = 51,872.06/x
  3. Step 3: Cross multiply
    87,682.98x = 121,003.72 × 51,872.06
  4. Step 4: Simplify right side
    87,682.98x = 6,276,712,224.06
  5. Step 5: Solve for x
    x = 6,276,712,224.06/87,682.98
  6. Step 6: Final answer
    x = 71,584.16

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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.