Home / 71,556.21-107,327.03-18,971.01

Finding the Fourth Proportional to 71,556.21, 107,327.03 and 18,971.01

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Solution

The fourth proportional to 71,556.21, 107,327.03 and 18,971.01 is: 28,454.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,556.21 : 107,327.03 = 18,971.01 : x
  2. Step 2: Convert to fraction form
    71,556.21/107,327.03 = 18,971.01/x
  3. Step 3: Cross multiply
    71,556.21x = 107,327.03 × 18,971.01
  4. Step 4: Simplify right side
    71,556.21x = 2,036,102,064.55
  5. Step 5: Solve for x
    x = 2,036,102,064.55/71,556.21
  6. Step 6: Final answer
    x = 28,454.58

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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.