Home / 87,929.85-131,894.96-21,370.08

Finding the Fourth Proportional to 87,929.85, 131,894.96 and 21,370.08

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Solution

The fourth proportional to 87,929.85, 131,894.96 and 21,370.08 is: 32,055.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,929.85 : 131,894.96 = 21,370.08 : x
  2. Step 2: Convert to fraction form
    87,929.85/131,894.96 = 21,370.08/x
  3. Step 3: Cross multiply
    87,929.85x = 131,894.96 × 21,370.08
  4. Step 4: Simplify right side
    87,929.85x = 2,818,605,739.95
  5. Step 5: Solve for x
    x = 2,818,605,739.95/87,929.85
  6. Step 6: Final answer
    x = 32,055.16

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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.