Home / 66,025.67-91,099.08-39,174.57

Finding the Fourth Proportional to 66,025.67, 91,099.08 and 39,174.57

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Solution

The fourth proportional to 66,025.67, 91,099.08 and 39,174.57 is: 54,051.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,025.67 : 91,099.08 = 39,174.57 : x
  2. Step 2: Convert to fraction form
    66,025.67/91,099.08 = 39,174.57/x
  3. Step 3: Cross multiply
    66,025.67x = 91,099.08 × 39,174.57
  4. Step 4: Simplify right side
    66,025.67x = 3,568,767,286.40
  5. Step 5: Solve for x
    x = 3,568,767,286.40/66,025.67
  6. Step 6: Final answer
    x = 54,051.21

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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.