Home / 45,354.96-68,033.79-12,078.54

Finding the Fourth Proportional to 45,354.96, 68,033.79 and 12,078.54

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Solution

The fourth proportional to 45,354.96, 68,033.79 and 12,078.54 is: 18,118.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,354.96 : 68,033.79 = 12,078.54 : x
  2. Step 2: Convert to fraction form
    45,354.96/68,033.79 = 12,078.54/x
  3. Step 3: Cross multiply
    45,354.96x = 68,033.79 × 12,078.54
  4. Step 4: Simplify right side
    45,354.96x = 821,748,853.87
  5. Step 5: Solve for x
    x = 821,748,853.87/45,354.96
  6. Step 6: Final answer
    x = 18,118.17

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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.