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Finding the Fourth Proportional to 75,484.25, 113,223.78 and 19,324.86

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Solution

The fourth proportional to 75,484.25, 113,223.78 and 19,324.86 is: 28,986.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,484.25 : 113,223.78 = 19,324.86 : x
  2. Step 2: Convert to fraction form
    75,484.25/113,223.78 = 19,324.86/x
  3. Step 3: Cross multiply
    75,484.25x = 113,223.78 × 19,324.86
  4. Step 4: Simplify right side
    75,484.25x = 2,188,033,131.05
  5. Step 5: Solve for x
    x = 2,188,033,131.05/75,484.25
  6. Step 6: Final answer
    x = 28,986.62

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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.