Home / 66,391.02-91,618.68-36,177.60

Finding the Fourth Proportional to 66,391.02, 91,618.68 and 36,177.60

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Solution

The fourth proportional to 66,391.02, 91,618.68 and 36,177.60 is: 49,924.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,391.02 : 91,618.68 = 36,177.60 : x
  2. Step 2: Convert to fraction form
    66,391.02/91,618.68 = 36,177.60/x
  3. Step 3: Cross multiply
    66,391.02x = 91,618.68 × 36,177.60
  4. Step 4: Simplify right side
    66,391.02x = 3,314,543,957.57
  5. Step 5: Solve for x
    x = 3,314,543,957.57/66,391.02
  6. Step 6: Final answer
    x = 49,924.58

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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.