Home / 87,750.29-131,645.12-27,782.35

Finding the Fourth Proportional to 87,750.29, 131,645.12 and 27,782.35

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Solution

The fourth proportional to 87,750.29, 131,645.12 and 27,782.35 is: 41,679.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,750.29 : 131,645.12 = 27,782.35 : x
  2. Step 2: Convert to fraction form
    87,750.29/131,645.12 = 27,782.35/x
  3. Step 3: Cross multiply
    87,750.29x = 131,645.12 × 27,782.35
  4. Step 4: Simplify right side
    87,750.29x = 3,657,410,331.61
  5. Step 5: Solve for x
    x = 3,657,410,331.61/87,750.29
  6. Step 6: Final answer
    x = 41,679.75

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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.