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Finding the Fourth Proportional to 66,000.81, 91,072.41 and 37,324.38

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Solution

The fourth proportional to 66,000.81, 91,072.41 and 37,324.38 is: 51,502.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,000.81 : 91,072.41 = 37,324.38 : x
  2. Step 2: Convert to fraction form
    66,000.81/91,072.41 = 37,324.38/x
  3. Step 3: Cross multiply
    66,000.81x = 91,072.41 × 37,324.38
  4. Step 4: Simplify right side
    66,000.81x = 3,399,221,238.36
  5. Step 5: Solve for x
    x = 3,399,221,238.36/66,000.81
  6. Step 6: Final answer
    x = 51,502.72

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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.