Home / 45,654.85-68,483.18-20,690.29

Finding the Fourth Proportional to 45,654.85, 68,483.18 and 20,690.29

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Solution

The fourth proportional to 45,654.85, 68,483.18 and 20,690.29 is: 31,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,654.85 : 68,483.18 = 20,690.29 : x
  2. Step 2: Convert to fraction form
    45,654.85/68,483.18 = 20,690.29/x
  3. Step 3: Cross multiply
    45,654.85x = 68,483.18 × 20,690.29
  4. Step 4: Simplify right side
    45,654.85x = 1,416,936,854.32
  5. Step 5: Solve for x
    x = 1,416,936,854.32/45,654.85
  6. Step 6: Final answer
    x = 31,035.85

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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.