Home / 71,566.84-107,338.09-18,981.64

Finding the Fourth Proportional to 71,566.84, 107,338.09 and 18,981.64

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Solution

The fourth proportional to 71,566.84, 107,338.09 and 18,981.64 is: 28,469.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,566.84 : 107,338.09 = 18,981.64 : x
  2. Step 2: Convert to fraction form
    71,566.84/107,338.09 = 18,981.64/x
  3. Step 3: Cross multiply
    71,566.84x = 107,338.09 × 18,981.64
  4. Step 4: Simplify right side
    71,566.84x = 2,037,452,982.67
  5. Step 5: Solve for x
    x = 2,037,452,982.67/71,566.84
  6. Step 6: Final answer
    x = 28,469.23

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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.