Home / 84,135.24-126,155.52-27,945.27

Finding the Fourth Proportional to 84,135.24, 126,155.52 and 27,945.27

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Solution

The fourth proportional to 84,135.24, 126,155.52 and 27,945.27 is: 41,902.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,135.24 : 126,155.52 = 27,945.27 : x
  2. Step 2: Convert to fraction form
    84,135.24/126,155.52 = 27,945.27/x
  3. Step 3: Cross multiply
    84,135.24x = 126,155.52 × 27,945.27
  4. Step 4: Simplify right side
    84,135.24x = 3,525,450,068.39
  5. Step 5: Solve for x
    x = 3,525,450,068.39/84,135.24
  6. Step 6: Final answer
    x = 41,902.18

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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.