Home / 66,454.57-91,709.58-37,775.43

Finding the Fourth Proportional to 66,454.57, 91,709.58 and 37,775.43

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Solution

The fourth proportional to 66,454.57, 91,709.58 and 37,775.43 is: 52,131.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,454.57 : 91,709.58 = 37,775.43 : x
  2. Step 2: Convert to fraction form
    66,454.57/91,709.58 = 37,775.43/x
  3. Step 3: Cross multiply
    66,454.57x = 91,709.58 × 37,775.43
  4. Step 4: Simplify right side
    66,454.57x = 3,464,368,961.28
  5. Step 5: Solve for x
    x = 3,464,368,961.28/66,454.57
  6. Step 6: Final answer
    x = 52,131.39

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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.