Home / 66,143.31-91,277.71-35,928.69

Finding the Fourth Proportional to 66,143.31, 91,277.71 and 35,928.69

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Solution

The fourth proportional to 66,143.31, 91,277.71 and 35,928.69 is: 49,581.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,143.31 : 91,277.71 = 35,928.69 : x
  2. Step 2: Convert to fraction form
    66,143.31/91,277.71 = 35,928.69/x
  3. Step 3: Cross multiply
    66,143.31x = 91,277.71 × 35,928.69
  4. Step 4: Simplify right side
    66,143.31x = 3,279,488,546.50
  5. Step 5: Solve for x
    x = 3,279,488,546.50/66,143.31
  6. Step 6: Final answer
    x = 49,581.56

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1.5x scale

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.