Home / 66,080.45-91,266.69-43,520.28

Finding the Fourth Proportional to 66,080.45, 91,266.69 and 43,520.28

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Solution

The fourth proportional to 66,080.45, 91,266.69 and 43,520.28 is: 60,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,080.45 : 91,266.69 = 43,520.28 : x
  2. Step 2: Convert to fraction form
    66,080.45/91,266.69 = 43,520.28/x
  3. Step 3: Cross multiply
    66,080.45x = 91,266.69 × 43,520.28
  4. Step 4: Simplify right side
    66,080.45x = 3,971,951,903.47
  5. Step 5: Solve for x
    x = 3,971,951,903.47/66,080.45
  6. Step 6: Final answer
    x = 60,107.83

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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.