Home / 86,050.68-129,071.38-26,879.56

Finding the Fourth Proportional to 86,050.68, 129,071.38 and 26,879.56

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Solution

The fourth proportional to 86,050.68, 129,071.38 and 26,879.56 is: 40,317.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,050.68 : 129,071.38 = 26,879.56 : x
  2. Step 2: Convert to fraction form
    86,050.68/129,071.38 = 26,879.56/x
  3. Step 3: Cross multiply
    86,050.68x = 129,071.38 × 26,879.56
  4. Step 4: Simplify right side
    86,050.68x = 3,469,381,902.99
  5. Step 5: Solve for x
    x = 3,469,381,902.99/86,050.68
  6. Step 6: Final answer
    x = 40,317.89

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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.