Home / 86,634.35-119,446.52-66,241.43

Finding the Fourth Proportional to 86,634.35, 119,446.52 and 66,241.43

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Solution

The fourth proportional to 86,634.35, 119,446.52 and 66,241.43 is: 91,329.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,634.35 : 119,446.52 = 66,241.43 : x
  2. Step 2: Convert to fraction form
    86,634.35/119,446.52 = 66,241.43/x
  3. Step 3: Cross multiply
    86,634.35x = 119,446.52 × 66,241.43
  4. Step 4: Simplify right side
    86,634.35x = 7,912,307,364.88
  5. Step 5: Solve for x
    x = 7,912,307,364.88/86,634.35
  6. Step 6: Final answer
    x = 91,329.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.