Home / 87,672.24-131,515.56-28,506.60

Finding the Fourth Proportional to 87,672.24, 131,515.56 and 28,506.60

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Solution

The fourth proportional to 87,672.24, 131,515.56 and 28,506.60 is: 42,762.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,672.24 : 131,515.56 = 28,506.60 : x
  2. Step 2: Convert to fraction form
    87,672.24/131,515.56 = 28,506.60/x
  3. Step 3: Cross multiply
    87,672.24x = 131,515.56 × 28,506.60
  4. Step 4: Simplify right side
    87,672.24x = 3,749,061,462.70
  5. Step 5: Solve for x
    x = 3,749,061,462.70/87,672.24
  6. Step 6: Final answer
    x = 42,762.24

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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.