Home / 86,537.70-129,806.55-47,171.70

Finding the Fourth Proportional to 86,537.70, 129,806.55 and 47,171.70

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Solution

The fourth proportional to 86,537.70, 129,806.55 and 47,171.70 is: 70,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,537.70 : 129,806.55 = 47,171.70 : x
  2. Step 2: Convert to fraction form
    86,537.70/129,806.55 = 47,171.70/x
  3. Step 3: Cross multiply
    86,537.70x = 129,806.55 × 47,171.70
  4. Step 4: Simplify right side
    86,537.70x = 6,123,195,634.64
  5. Step 5: Solve for x
    x = 6,123,195,634.64/86,537.70
  6. Step 6: Final answer
    x = 70,757.55

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1.5x scale

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.