Home / 87,040.67-120,115.91-49,314.92

Finding the Fourth Proportional to 87,040.67, 120,115.91 and 49,314.92

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Solution

The fourth proportional to 87,040.67, 120,115.91 and 49,314.92 is: 68,054.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,040.67 : 120,115.91 = 49,314.92 : x
  2. Step 2: Convert to fraction form
    87,040.67/120,115.91 = 49,314.92/x
  3. Step 3: Cross multiply
    87,040.67x = 120,115.91 × 49,314.92
  4. Step 4: Simplify right side
    87,040.67x = 5,923,506,015.08
  5. Step 5: Solve for x
    x = 5,923,506,015.08/87,040.67
  6. Step 6: Final answer
    x = 68,054.47

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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.