Home / 66,639.13-91,959.37-36,425.52

Finding the Fourth Proportional to 66,639.13, 91,959.37 and 36,425.52

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Solution

The fourth proportional to 66,639.13, 91,959.37 and 36,425.52 is: 50,265.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,639.13 : 91,959.37 = 36,425.52 : x
  2. Step 2: Convert to fraction form
    66,639.13/91,959.37 = 36,425.52/x
  3. Step 3: Cross multiply
    66,639.13x = 91,959.37 × 36,425.52
  4. Step 4: Simplify right side
    66,639.13x = 3,349,667,780.06
  5. Step 5: Solve for x
    x = 3,349,667,780.06/66,639.13
  6. Step 6: Final answer
    x = 50,265.78

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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.