Home / 87,682.10-121,002.46-51,871.19

Finding the Fourth Proportional to 87,682.10, 121,002.46 and 51,871.19

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Solution

The fourth proportional to 87,682.10, 121,002.46 and 51,871.19 is: 71,582.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,682.10 : 121,002.46 = 51,871.19 : x
  2. Step 2: Convert to fraction form
    87,682.10/121,002.46 = 51,871.19/x
  3. Step 3: Cross multiply
    87,682.10x = 121,002.46 × 51,871.19
  4. Step 4: Simplify right side
    87,682.10x = 6,276,540,858.44
  5. Step 5: Solve for x
    x = 6,276,540,858.44/87,682.10
  6. Step 6: Final answer
    x = 71,582.93

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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.