Home / 66,371.67-91,588.32-39,516.12

Finding the Fourth Proportional to 66,371.67, 91,588.32 and 39,516.12

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Solution

The fourth proportional to 66,371.67, 91,588.32 and 39,516.12 is: 54,529.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,371.67 : 91,588.32 = 39,516.12 : x
  2. Step 2: Convert to fraction form
    66,371.67/91,588.32 = 39,516.12/x
  3. Step 3: Cross multiply
    66,371.67x = 91,588.32 × 39,516.12
  4. Step 4: Simplify right side
    66,371.67x = 3,619,215,043.72
  5. Step 5: Solve for x
    x = 3,619,215,043.72/66,371.67
  6. Step 6: Final answer
    x = 54,529.52

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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.