Home / 45,654.35-68,482.43-20,689.79

Finding the Fourth Proportional to 45,654.35, 68,482.43 and 20,689.79

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Solution

The fourth proportional to 45,654.35, 68,482.43 and 20,689.79 is: 31,035.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,654.35 : 68,482.43 = 20,689.79 : x
  2. Step 2: Convert to fraction form
    45,654.35/68,482.43 = 20,689.79/x
  3. Step 3: Cross multiply
    45,654.35x = 68,482.43 × 20,689.79
  4. Step 4: Simplify right side
    45,654.35x = 1,416,886,991.94
  5. Step 5: Solve for x
    x = 1,416,886,991.94/45,654.35
  6. Step 6: Final answer
    x = 31,035.09

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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.