Home / 83,091.40-124,622.70-30,473.80

Finding the Fourth Proportional to 83,091.40, 124,622.70 and 30,473.80

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Solution

The fourth proportional to 83,091.40, 124,622.70 and 30,473.80 is: 45,705.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,091.40 : 124,622.70 = 30,473.80 : x
  2. Step 2: Convert to fraction form
    83,091.40/124,622.70 = 30,473.80/x
  3. Step 3: Cross multiply
    83,091.40x = 124,622.70 × 30,473.80
  4. Step 4: Simplify right side
    83,091.40x = 3,797,727,235.26
  5. Step 5: Solve for x
    x = 3,797,727,235.26/83,091.40
  6. Step 6: Final answer
    x = 45,705.42

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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.