Home / 87,051.38-130,408.92-64,215

Finding the Fourth Proportional to 87,051.38, 130,408.92 and 64,215

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Solution

The fourth proportional to 87,051.38, 130,408.92 and 64,215 is: 96,198.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,051.38 : 130,408.92 = 64,215 : x
  2. Step 2: Convert to fraction form
    87,051.38/130,408.92 = 64,215/x
  3. Step 3: Cross multiply
    87,051.38x = 130,408.92 × 64,215
  4. Step 4: Simplify right side
    87,051.38x = 8,374,208,797.80
  5. Step 5: Solve for x
    x = 8,374,208,797.80/87,051.38
  6. Step 6: Final answer
    x = 96,198.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.