Home / 45,355.60-68,021.04-28,690.56

Finding the Fourth Proportional to 45,355.60, 68,021.04 and 28,690.56

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Solution

The fourth proportional to 45,355.60, 68,021.04 and 28,690.56 is: 43,028.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,355.60 : 68,021.04 = 28,690.56 : x
  2. Step 2: Convert to fraction form
    45,355.60/68,021.04 = 28,690.56/x
  3. Step 3: Cross multiply
    45,355.60x = 68,021.04 × 28,690.56
  4. Step 4: Simplify right side
    45,355.60x = 1,951,561,729.38
  5. Step 5: Solve for x
    x = 1,951,561,729.38/45,355.60
  6. Step 6: Final answer
    x = 43,028.02

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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.