Home / 45,821.10-68,742.42-14,229.57

Finding the Fourth Proportional to 45,821.10, 68,742.42 and 14,229.57

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Solution

The fourth proportional to 45,821.10, 68,742.42 and 14,229.57 is: 21,347.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,821.10 : 68,742.42 = 14,229.57 : x
  2. Step 2: Convert to fraction form
    45,821.10/68,742.42 = 14,229.57/x
  3. Step 3: Cross multiply
    45,821.10x = 68,742.42 × 14,229.57
  4. Step 4: Simplify right side
    45,821.10x = 978,175,077.36
  5. Step 5: Solve for x
    x = 978,175,077.36/45,821.10
  6. Step 6: Final answer
    x = 21,347.70

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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.