Home / 75,643.32-113,451.57-28,247.79

Finding the Fourth Proportional to 75,643.32, 113,451.57 and 28,247.79

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Solution

The fourth proportional to 75,643.32, 113,451.57 and 28,247.79 is: 42,366.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,643.32 : 113,451.57 = 28,247.79 : x
  2. Step 2: Convert to fraction form
    75,643.32/113,451.57 = 28,247.79/x
  3. Step 3: Cross multiply
    75,643.32x = 113,451.57 × 28,247.79
  4. Step 4: Simplify right side
    75,643.32x = 3,204,756,124.53
  5. Step 5: Solve for x
    x = 3,204,756,124.53/75,643.32
  6. Step 6: Final answer
    x = 42,366.68

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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.