Home / 87,398.15-131,069.44-28,220.06

Finding the Fourth Proportional to 87,398.15, 131,069.44 and 28,220.06

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Solution

The fourth proportional to 87,398.15, 131,069.44 and 28,220.06 is: 42,321.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,398.15 : 131,069.44 = 28,220.06 : x
  2. Step 2: Convert to fraction form
    87,398.15/131,069.44 = 28,220.06/x
  3. Step 3: Cross multiply
    87,398.15x = 131,069.44 × 28,220.06
  4. Step 4: Simplify right side
    87,398.15x = 3,698,787,460.97
  5. Step 5: Solve for x
    x = 3,698,787,460.97/87,398.15
  6. Step 6: Final answer
    x = 42,321.12

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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.