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Finding the Fourth Proportional to 66,040.28, 91,135.28 and 35,825.62

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Solution

The fourth proportional to 66,040.28, 91,135.28 and 35,825.62 is: 49,439.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,040.28 : 91,135.28 = 35,825.62 : x
  2. Step 2: Convert to fraction form
    66,040.28/91,135.28 = 35,825.62/x
  3. Step 3: Cross multiply
    66,040.28x = 91,135.28 × 35,825.62
  4. Step 4: Simplify right side
    66,040.28x = 3,264,977,909.87
  5. Step 5: Solve for x
    x = 3,264,977,909.87/66,040.28
  6. Step 6: Final answer
    x = 49,439.19

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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.