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Finding the Fourth Proportional to 75,920.20, 113,880.30 and 34,367.20

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Solution

The fourth proportional to 75,920.20, 113,880.30 and 34,367.20 is: 51,550.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,920.20 : 113,880.30 = 34,367.20 : x
  2. Step 2: Convert to fraction form
    75,920.20/113,880.30 = 34,367.20/x
  3. Step 3: Cross multiply
    75,920.20x = 113,880.30 × 34,367.20
  4. Step 4: Simplify right side
    75,920.20x = 3,913,747,046.16
  5. Step 5: Solve for x
    x = 3,913,747,046.16/75,920.20
  6. Step 6: Final answer
    x = 51,550.80

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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.