Home / 71,918-107,898.24-36,882.20

Finding the Fourth Proportional to 71,918, 107,898.24 and 36,882.20

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Solution

The fourth proportional to 71,918, 107,898.24 and 36,882.20 is: 55,334.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,918 : 107,898.24 = 36,882.20 : x
  2. Step 2: Convert to fraction form
    71,918/107,898.24 = 36,882.20/x
  3. Step 3: Cross multiply
    71,918x = 107,898.24 × 36,882.20
  4. Step 4: Simplify right side
    71,918x = 3,979,524,467.33
  5. Step 5: Solve for x
    x = 3,979,524,467.33/71,918
  6. Step 6: Final answer
    x = 55,334.19

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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.