Home / 71,914.89-99,245.93-40,084.02

Finding the Fourth Proportional to 71,914.89, 99,245.93 and 40,084.02

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Solution

The fourth proportional to 71,914.89, 99,245.93 and 40,084.02 is: 55,317.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,914.89 : 99,245.93 = 40,084.02 : x
  2. Step 2: Convert to fraction form
    71,914.89/99,245.93 = 40,084.02/x
  3. Step 3: Cross multiply
    71,914.89x = 99,245.93 × 40,084.02
  4. Step 4: Simplify right side
    71,914.89x = 3,978,175,642.62
  5. Step 5: Solve for x
    x = 3,978,175,642.62/71,914.89
  6. Step 6: Final answer
    x = 55,317.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.