Home / 87,040.32-130,517.43-27,868.30

Finding the Fourth Proportional to 87,040.32, 130,517.43 and 27,868.30

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Solution

The fourth proportional to 87,040.32, 130,517.43 and 27,868.30 is: 41,788.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,040.32 : 130,517.43 = 27,868.30 : x
  2. Step 2: Convert to fraction form
    87,040.32/130,517.43 = 27,868.30/x
  3. Step 3: Cross multiply
    87,040.32x = 130,517.43 × 27,868.30
  4. Step 4: Simplify right side
    87,040.32x = 3,637,299,197.83
  5. Step 5: Solve for x
    x = 3,637,299,197.83/87,040.32
  6. Step 6: Final answer
    x = 41,788.67

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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.