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Finding the Fourth Proportional to 66,167.73, 91,276.67 and 40,334.30

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Solution

The fourth proportional to 66,167.73, 91,276.67 and 40,334.30 is: 55,640.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,167.73 : 91,276.67 = 40,334.30 : x
  2. Step 2: Convert to fraction form
    66,167.73/91,276.67 = 40,334.30/x
  3. Step 3: Cross multiply
    66,167.73x = 91,276.67 × 40,334.30
  4. Step 4: Simplify right side
    66,167.73x = 3,681,580,577.52
  5. Step 5: Solve for x
    x = 3,681,580,577.52/66,167.73
  6. Step 6: Final answer
    x = 55,640.12

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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.