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Finding the Fourth Proportional to 66,383.78, 91,614.71 and 37,708.56

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Solution

The fourth proportional to 66,383.78, 91,614.71 and 37,708.56 is: 52,040.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,383.78 : 91,614.71 = 37,708.56 : x
  2. Step 2: Convert to fraction form
    66,383.78/91,614.71 = 37,708.56/x
  3. Step 3: Cross multiply
    66,383.78x = 91,614.71 × 37,708.56
  4. Step 4: Simplify right side
    66,383.78x = 3,454,658,883.19
  5. Step 5: Solve for x
    x = 3,454,658,883.19/66,383.78
  6. Step 6: Final answer
    x = 52,040.71

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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.