Home / 84,667.36-126,991.32-22,342.72

Finding the Fourth Proportional to 84,667.36, 126,991.32 and 22,342.72

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Solution

The fourth proportional to 84,667.36, 126,991.32 and 22,342.72 is: 33,511.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,667.36 : 126,991.32 = 22,342.72 : x
  2. Step 2: Convert to fraction form
    84,667.36/126,991.32 = 22,342.72/x
  3. Step 3: Cross multiply
    84,667.36x = 126,991.32 × 22,342.72
  4. Step 4: Simplify right side
    84,667.36x = 2,837,331,505.19
  5. Step 5: Solve for x
    x = 2,837,331,505.19/84,667.36
  6. Step 6: Final answer
    x = 33,511.52

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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.