Home / 66,165.78-91,323.18-40,694.04

Finding the Fourth Proportional to 66,165.78, 91,323.18 and 40,694.04

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Solution

The fourth proportional to 66,165.78, 91,323.18 and 40,694.04 is: 56,166.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,165.78 : 91,323.18 = 40,694.04 : x
  2. Step 2: Convert to fraction form
    66,165.78/91,323.18 = 40,694.04/x
  3. Step 3: Cross multiply
    66,165.78x = 91,323.18 × 40,694.04
  4. Step 4: Simplify right side
    66,165.78x = 3,716,309,139.85
  5. Step 5: Solve for x
    x = 3,716,309,139.85/66,165.78
  6. Step 6: Final answer
    x = 56,166.63

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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.