Home / 45,543.96-68,295.87-20,583

Finding the Fourth Proportional to 45,543.96, 68,295.87 and 20,583

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Solution

The fourth proportional to 45,543.96, 68,295.87 and 20,583 is: 30,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,543.96 : 68,295.87 = 20,583 : x
  2. Step 2: Convert to fraction form
    45,543.96/68,295.87 = 20,583/x
  3. Step 3: Cross multiply
    45,543.96x = 68,295.87 × 20,583
  4. Step 4: Simplify right side
    45,543.96x = 1,405,733,892.21
  5. Step 5: Solve for x
    x = 1,405,733,892.21/45,543.96
  6. Step 6: Final answer
    x = 30,865.43

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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.