Home / 66,317.93-91,491.64-40,816.60

Finding the Fourth Proportional to 66,317.93, 91,491.64 and 40,816.60

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Solution

The fourth proportional to 66,317.93, 91,491.64 and 40,816.60 is: 56,310.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,317.93 : 91,491.64 = 40,816.60 : x
  2. Step 2: Convert to fraction form
    66,317.93/91,491.64 = 40,816.60/x
  3. Step 3: Cross multiply
    66,317.93x = 91,491.64 × 40,816.60
  4. Step 4: Simplify right side
    66,317.93x = 3,734,377,673.22
  5. Step 5: Solve for x
    x = 3,734,377,673.22/66,317.93
  6. Step 6: Final answer
    x = 56,310.23

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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.