Home / 45,457.11-68,153.96-20,142.86

Finding the Fourth Proportional to 45,457.11, 68,153.96 and 20,142.86

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Solution

The fourth proportional to 45,457.11, 68,153.96 and 20,142.86 is: 30,200.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,457.11 : 68,153.96 = 20,142.86 : x
  2. Step 2: Convert to fraction form
    45,457.11/68,153.96 = 20,142.86/x
  3. Step 3: Cross multiply
    45,457.11x = 68,153.96 × 20,142.86
  4. Step 4: Simplify right side
    45,457.11x = 1,372,815,384.31
  5. Step 5: Solve for x
    x = 1,372,815,384.31/45,457.11
  6. Step 6: Final answer
    x = 30,200.23

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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.