Home / 80,788.14-111,449.34-56,927.94

Finding the Fourth Proportional to 80,788.14, 111,449.34 and 56,927.94

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Solution

The fourth proportional to 80,788.14, 111,449.34 and 56,927.94 is: 78,533.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,788.14 : 111,449.34 = 56,927.94 : x
  2. Step 2: Convert to fraction form
    80,788.14/111,449.34 = 56,927.94/x
  3. Step 3: Cross multiply
    80,788.14x = 111,449.34 × 56,927.94
  4. Step 4: Simplify right side
    80,788.14x = 6,344,581,340.56
  5. Step 5: Solve for x
    x = 6,344,581,340.56/80,788.14
  6. Step 6: Final answer
    x = 78,533.57

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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.