Home / 45,249.75-67,763.86-31,889.91

Finding the Fourth Proportional to 45,249.75, 67,763.86 and 31,889.91

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Solution

The fourth proportional to 45,249.75, 67,763.86 and 31,889.91 is: 47,756.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,249.75 : 67,763.86 = 31,889.91 : x
  2. Step 2: Convert to fraction form
    45,249.75/67,763.86 = 31,889.91/x
  3. Step 3: Cross multiply
    45,249.75x = 67,763.86 × 31,889.91
  4. Step 4: Simplify right side
    45,249.75x = 2,160,983,396.65
  5. Step 5: Solve for x
    x = 2,160,983,396.65/45,249.75
  6. Step 6: Final answer
    x = 47,756.80

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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.