Home / 75,906.10-113,859.54-31,532.90

Finding the Fourth Proportional to 75,906.10, 113,859.54 and 31,532.90

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Solution

The fourth proportional to 75,906.10, 113,859.54 and 31,532.90 is: 47,299.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,906.10 : 113,859.54 = 31,532.90 : x
  2. Step 2: Convert to fraction form
    75,906.10/113,859.54 = 31,532.90/x
  3. Step 3: Cross multiply
    75,906.10x = 113,859.54 × 31,532.90
  4. Step 4: Simplify right side
    75,906.10x = 3,590,321,488.87
  5. Step 5: Solve for x
    x = 3,590,321,488.87/75,906.10
  6. Step 6: Final answer
    x = 47,299.51

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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.