Home / 84,911.22-127,359-28,744.91

Finding the Fourth Proportional to 84,911.22, 127,359 and 28,744.91

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Solution

The fourth proportional to 84,911.22, 127,359 and 28,744.91 is: 43,114.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,911.22 : 127,359 = 28,744.91 : x
  2. Step 2: Convert to fraction form
    84,911.22/127,359 = 28,744.91/x
  3. Step 3: Cross multiply
    84,911.22x = 127,359 × 28,744.91
  4. Step 4: Simplify right side
    84,911.22x = 3,660,922,355.90
  5. Step 5: Solve for x
    x = 3,660,922,355.90/84,911.22
  6. Step 6: Final answer
    x = 43,114.71

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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.