Home / 84,849.43-127,221.80-28,684.21

Finding the Fourth Proportional to 84,849.43, 127,221.80 and 28,684.21

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Solution

The fourth proportional to 84,849.43, 127,221.80 and 28,684.21 is: 43,008.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,849.43 : 127,221.80 = 28,684.21 : x
  2. Step 2: Convert to fraction form
    84,849.43/127,221.80 = 28,684.21/x
  3. Step 3: Cross multiply
    84,849.43x = 127,221.80 × 28,684.21
  4. Step 4: Simplify right side
    84,849.43x = 3,649,256,191.67
  5. Step 5: Solve for x
    x = 3,649,256,191.67/84,849.43
  6. Step 6: Final answer
    x = 43,008.61

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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.