Home / 80,787.14-111,447.96-56,926.94

Finding the Fourth Proportional to 80,787.14, 111,447.96 and 56,926.94

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Solution

The fourth proportional to 80,787.14, 111,447.96 and 56,926.94 is: 78,532.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,787.14 : 111,447.96 = 56,926.94 : x
  2. Step 2: Convert to fraction form
    80,787.14/111,447.96 = 56,926.94/x
  3. Step 3: Cross multiply
    80,787.14x = 111,447.96 × 56,926.94
  4. Step 4: Simplify right side
    80,787.14x = 6,344,391,332.04
  5. Step 5: Solve for x
    x = 6,344,391,332.04/80,787.14
  6. Step 6: Final answer
    x = 78,532.19

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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.