Home / 87,636.08-131,454.04-21,076.19

Finding the Fourth Proportional to 87,636.08, 131,454.04 and 21,076.19

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Solution

The fourth proportional to 87,636.08, 131,454.04 and 21,076.19 is: 31,614.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,636.08 : 131,454.04 = 21,076.19 : x
  2. Step 2: Convert to fraction form
    87,636.08/131,454.04 = 21,076.19/x
  3. Step 3: Cross multiply
    87,636.08x = 131,454.04 × 21,076.19
  4. Step 4: Simplify right side
    87,636.08x = 2,770,550,323.31
  5. Step 5: Solve for x
    x = 2,770,550,323.31/87,636.08
  6. Step 6: Final answer
    x = 31,614.27

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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.