Home / 50,981.40-76,320.90-37,891.80

Finding the Fourth Proportional to 50,981.40, 76,320.90 and 37,891.80

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Solution

The fourth proportional to 50,981.40, 76,320.90 and 37,891.80 is: 56,725.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,981.40 : 76,320.90 = 37,891.80 : x
  2. Step 2: Convert to fraction form
    50,981.40/76,320.90 = 37,891.80/x
  3. Step 3: Cross multiply
    50,981.40x = 76,320.90 × 37,891.80
  4. Step 4: Simplify right side
    50,981.40x = 2,891,936,278.62
  5. Step 5: Solve for x
    x = 2,891,936,278.62/50,981.40
  6. Step 6: Final answer
    x = 56,725.32

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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.