Home / 87,867.40-131,768.70-43,479.40

Finding the Fourth Proportional to 87,867.40, 131,768.70 and 43,479.40

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Solution

The fourth proportional to 87,867.40, 131,768.70 and 43,479.40 is: 65,203.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,867.40 : 131,768.70 = 43,479.40 : x
  2. Step 2: Convert to fraction form
    87,867.40/131,768.70 = 43,479.40/x
  3. Step 3: Cross multiply
    87,867.40x = 131,768.70 × 43,479.40
  4. Step 4: Simplify right side
    87,867.40x = 5,729,224,014.78
  5. Step 5: Solve for x
    x = 5,729,224,014.78/87,867.40
  6. Step 6: Final answer
    x = 65,203.07

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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.