Home / 66,389.87-91,617.20-36,174.41

Finding the Fourth Proportional to 66,389.87, 91,617.20 and 36,174.41

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Solution

The fourth proportional to 66,389.87, 91,617.20 and 36,174.41 is: 49,920.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,389.87 : 91,617.20 = 36,174.41 : x
  2. Step 2: Convert to fraction form
    66,389.87/91,617.20 = 36,174.41/x
  3. Step 3: Cross multiply
    66,389.87x = 91,617.20 × 36,174.41
  4. Step 4: Simplify right side
    66,389.87x = 3,314,198,204.02
  5. Step 5: Solve for x
    x = 3,314,198,204.02/66,389.87
  6. Step 6: Final answer
    x = 49,920.24

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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.