Home / 45,447.96-68,172.66-13,858.68

Finding the Fourth Proportional to 45,447.96, 68,172.66 and 13,858.68

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Solution

The fourth proportional to 45,447.96, 68,172.66 and 13,858.68 is: 20,788.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,447.96 : 68,172.66 = 13,858.68 : x
  2. Step 2: Convert to fraction form
    45,447.96/68,172.66 = 13,858.68/x
  3. Step 3: Cross multiply
    45,447.96x = 68,172.66 × 13,858.68
  4. Step 4: Simplify right side
    45,447.96x = 944,783,079.69
  5. Step 5: Solve for x
    x = 944,783,079.69/45,447.96
  6. Step 6: Final answer
    x = 20,788.24

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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.