Home / 66,147.57-91,248.64-41,905.77

Finding the Fourth Proportional to 66,147.57, 91,248.64 and 41,905.77

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Solution

The fourth proportional to 66,147.57, 91,248.64 and 41,905.77 is: 57,807.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,147.57 : 91,248.64 = 41,905.77 : x
  2. Step 2: Convert to fraction form
    66,147.57/91,248.64 = 41,905.77/x
  3. Step 3: Cross multiply
    66,147.57x = 91,248.64 × 41,905.77
  4. Step 4: Simplify right side
    66,147.57x = 3,823,844,520.65
  5. Step 5: Solve for x
    x = 3,823,844,520.65/66,147.57
  6. Step 6: Final answer
    x = 57,807.79

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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.