Home / 45,066.09-67,615.20-20,103.90

Finding the Fourth Proportional to 45,066.09, 67,615.20 and 20,103.90

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Solution

The fourth proportional to 45,066.09, 67,615.20 and 20,103.90 is: 30,163.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,066.09 : 67,615.20 = 20,103.90 : x
  2. Step 2: Convert to fraction form
    45,066.09/67,615.20 = 20,103.90/x
  3. Step 3: Cross multiply
    45,066.09x = 67,615.20 × 20,103.90
  4. Step 4: Simplify right side
    45,066.09x = 1,359,329,219.28
  5. Step 5: Solve for x
    x = 1,359,329,219.28/45,066.09
  6. Step 6: Final answer
    x = 30,163.02

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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.