Home / 90,797.25-136,217.72-28,467.75

Finding the Fourth Proportional to 90,797.25, 136,217.72 and 28,467.75

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Solution

The fourth proportional to 90,797.25, 136,217.72 and 28,467.75 is: 42,708.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,797.25 : 136,217.72 = 28,467.75 : x
  2. Step 2: Convert to fraction form
    90,797.25/136,217.72 = 28,467.75/x
  3. Step 3: Cross multiply
    90,797.25x = 136,217.72 × 28,467.75
  4. Step 4: Simplify right side
    90,797.25x = 3,877,811,998.53
  5. Step 5: Solve for x
    x = 3,877,811,998.53/90,797.25
  6. Step 6: Final answer
    x = 42,708.47

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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.