Home / 71,775.24-107,668.36-21,859.58

Finding the Fourth Proportional to 71,775.24, 107,668.36 and 21,859.58

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Solution

The fourth proportional to 71,775.24, 107,668.36 and 21,859.58 is: 32,791.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,775.24 : 107,668.36 = 21,859.58 : x
  2. Step 2: Convert to fraction form
    71,775.24/107,668.36 = 21,859.58/x
  3. Step 3: Cross multiply
    71,775.24x = 107,668.36 × 21,859.58
  4. Step 4: Simplify right side
    71,775.24x = 2,353,585,128.89
  5. Step 5: Solve for x
    x = 2,353,585,128.89/71,775.24
  6. Step 6: Final answer
    x = 32,791.05

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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.