Home / 75,257.28-103,846.59-43,436.70

Finding the Fourth Proportional to 75,257.28, 103,846.59 and 43,436.70

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Solution

The fourth proportional to 75,257.28, 103,846.59 and 43,436.70 is: 59,937.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,257.28 : 103,846.59 = 43,436.70 : x
  2. Step 2: Convert to fraction form
    75,257.28/103,846.59 = 43,436.70/x
  3. Step 3: Cross multiply
    75,257.28x = 103,846.59 × 43,436.70
  4. Step 4: Simplify right side
    75,257.28x = 4,510,753,175.85
  5. Step 5: Solve for x
    x = 4,510,753,175.85/75,257.28
  6. Step 6: Final answer
    x = 59,937.77

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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.