Home / 87,617.64-131,447.22-28,453.32

Finding the Fourth Proportional to 87,617.64, 131,447.22 and 28,453.32

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Solution

The fourth proportional to 87,617.64, 131,447.22 and 28,453.32 is: 42,686.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,617.64 : 131,447.22 = 28,453.32 : x
  2. Step 2: Convert to fraction form
    87,617.64/131,447.22 = 28,453.32/x
  3. Step 3: Cross multiply
    87,617.64x = 131,447.22 × 28,453.32
  4. Step 4: Simplify right side
    87,617.64x = 3,740,109,813.77
  5. Step 5: Solve for x
    x = 3,740,109,813.77/87,617.64
  6. Step 6: Final answer
    x = 42,686.72

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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.