Home / 66,143.59-91,225.38-43,505.83

Finding the Fourth Proportional to 66,143.59, 91,225.38 and 43,505.83

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Solution

The fourth proportional to 66,143.59, 91,225.38 and 43,505.83 is: 60,003.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,143.59 : 91,225.38 = 43,505.83 : x
  2. Step 2: Convert to fraction form
    66,143.59/91,225.38 = 43,505.83/x
  3. Step 3: Cross multiply
    66,143.59x = 91,225.38 × 43,505.83
  4. Step 4: Simplify right side
    66,143.59x = 3,968,835,873.97
  5. Step 5: Solve for x
    x = 3,968,835,873.97/66,143.59
  6. Step 6: Final answer
    x = 60,003.33

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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.