Home / 66,858.89-100,288.33-27,434.57

Finding the Fourth Proportional to 66,858.89, 100,288.33 and 27,434.57

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Solution

The fourth proportional to 66,858.89, 100,288.33 and 27,434.57 is: 41,151.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,858.89 : 100,288.33 = 27,434.57 : x
  2. Step 2: Convert to fraction form
    66,858.89/100,288.33 = 27,434.57/x
  3. Step 3: Cross multiply
    66,858.89x = 100,288.33 × 27,434.57
  4. Step 4: Simplify right side
    66,858.89x = 2,751,366,639.54
  5. Step 5: Solve for x
    x = 2,751,366,639.54/66,858.89
  6. Step 6: Final answer
    x = 41,151.85

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1.5x scale

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.