Home / 87,748.81-131,623.12-28,584.39

Finding the Fourth Proportional to 87,748.81, 131,623.12 and 28,584.39

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Solution

The fourth proportional to 87,748.81, 131,623.12 and 28,584.39 is: 42,876.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,748.81 : 131,623.12 = 28,584.39 : x
  2. Step 2: Convert to fraction form
    87,748.81/131,623.12 = 28,584.39/x
  3. Step 3: Cross multiply
    87,748.81x = 131,623.12 × 28,584.39
  4. Step 4: Simplify right side
    87,748.81x = 3,762,365,794.06
  5. Step 5: Solve for x
    x = 3,762,365,794.06/87,748.81
  6. Step 6: Final answer
    x = 42,876.54

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1.5x scale

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.