Home / 66,684.97-99,914.31-40,334.36

Finding the Fourth Proportional to 66,684.97, 99,914.31 and 40,334.36

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Solution

The fourth proportional to 66,684.97, 99,914.31 and 40,334.36 is: 60,433.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,684.97 : 99,914.31 = 40,334.36 : x
  2. Step 2: Convert to fraction form
    66,684.97/99,914.31 = 40,334.36/x
  3. Step 3: Cross multiply
    66,684.97x = 99,914.31 × 40,334.36
  4. Step 4: Simplify right side
    66,684.97x = 4,029,979,249.12
  5. Step 5: Solve for x
    x = 4,029,979,249.12/66,684.97
  6. Step 6: Final answer
    x = 60,433.10

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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.