Home / 83,742.09-125,605.81-27,581.77

Finding the Fourth Proportional to 83,742.09, 125,605.81 and 27,581.77

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Solution

The fourth proportional to 83,742.09, 125,605.81 and 27,581.77 is: 41,370.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,742.09 : 125,605.81 = 27,581.77 : x
  2. Step 2: Convert to fraction form
    83,742.09/125,605.81 = 27,581.77/x
  3. Step 3: Cross multiply
    83,742.09x = 125,605.81 × 27,581.77
  4. Step 4: Simplify right side
    83,742.09x = 3,464,430,562.08
  5. Step 5: Solve for x
    x = 3,464,430,562.08/83,742.09
  6. Step 6: Final answer
    x = 41,370.24

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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.