Home / 87,367.95-120,270.24-64,664.15

Finding the Fourth Proportional to 87,367.95, 120,270.24 and 64,664.15

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Solution

The fourth proportional to 87,367.95, 120,270.24 and 64,664.15 is: 89,016.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,367.95 : 120,270.24 = 64,664.15 : x
  2. Step 2: Convert to fraction form
    87,367.95/120,270.24 = 64,664.15/x
  3. Step 3: Cross multiply
    87,367.95x = 120,270.24 × 64,664.15
  4. Step 4: Simplify right side
    87,367.95x = 7,777,172,238.54
  5. Step 5: Solve for x
    x = 7,777,172,238.54/87,367.95
  6. Step 6: Final answer
    x = 89,016.31

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1.5x scale

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.