Home / 87,501.41-120,687.48-65,992.05

Finding the Fourth Proportional to 87,501.41, 120,687.48 and 65,992.05

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Solution

The fourth proportional to 87,501.41, 120,687.48 and 65,992.05 is: 91,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,501.41 : 120,687.48 = 65,992.05 : x
  2. Step 2: Convert to fraction form
    87,501.41/120,687.48 = 65,992.05/x
  3. Step 3: Cross multiply
    87,501.41x = 120,687.48 × 65,992.05
  4. Step 4: Simplify right side
    87,501.41x = 7,964,414,214.53
  5. Step 5: Solve for x
    x = 7,964,414,214.53/87,501.41
  6. Step 6: Final answer
    x = 91,020.42

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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.