Home / 71,485.41-107,193.38-21,556.20

Finding the Fourth Proportional to 71,485.41, 107,193.38 and 21,556.20

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Solution

The fourth proportional to 71,485.41, 107,193.38 and 21,556.20 is: 32,323.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,485.41 : 107,193.38 = 21,556.20 : x
  2. Step 2: Convert to fraction form
    71,485.41/107,193.38 = 21,556.20/x
  3. Step 3: Cross multiply
    71,485.41x = 107,193.38 × 21,556.20
  4. Step 4: Simplify right side
    71,485.41x = 2,310,681,830.18
  5. Step 5: Solve for x
    x = 2,310,681,830.18/71,485.41
  6. Step 6: Final answer
    x = 32,323.82

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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.