Home / 84,651.68-126,881.40-39,626.24

Finding the Fourth Proportional to 84,651.68, 126,881.40 and 39,626.24

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Solution

The fourth proportional to 84,651.68, 126,881.40 and 39,626.24 is: 59,394.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,651.68 : 126,881.40 = 39,626.24 : x
  2. Step 2: Convert to fraction form
    84,651.68/126,881.40 = 39,626.24/x
  3. Step 3: Cross multiply
    84,651.68x = 126,881.40 × 39,626.24
  4. Step 4: Simplify right side
    84,651.68x = 5,027,832,807.94
  5. Step 5: Solve for x
    x = 5,027,832,807.94/84,651.68
  6. Step 6: Final answer
    x = 59,394.37

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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.