Home / 87,375.75-131,030.32-31,205.37

Finding the Fourth Proportional to 87,375.75, 131,030.32 and 31,205.37

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Solution

The fourth proportional to 87,375.75, 131,030.32 and 31,205.37 is: 46,796.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,375.75 : 131,030.32 = 31,205.37 : x
  2. Step 2: Convert to fraction form
    87,375.75/131,030.32 = 31,205.37/x
  3. Step 3: Cross multiply
    87,375.75x = 131,030.32 × 31,205.37
  4. Step 4: Simplify right side
    87,375.75x = 4,088,849,616.82
  5. Step 5: Solve for x
    x = 4,088,849,616.82/87,375.75
  6. Step 6: Final answer
    x = 46,796.16

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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.