Home / 66,076.28-91,181.94-39,219.92

Finding the Fourth Proportional to 66,076.28, 91,181.94 and 39,219.92

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Solution

The fourth proportional to 66,076.28, 91,181.94 and 39,219.92 is: 54,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,076.28 : 91,181.94 = 39,219.92 : x
  2. Step 2: Convert to fraction form
    66,076.28/91,181.94 = 39,219.92/x
  3. Step 3: Cross multiply
    66,076.28x = 91,181.94 × 39,219.92
  4. Step 4: Simplify right side
    66,076.28x = 3,576,148,392.24
  5. Step 5: Solve for x
    x = 3,576,148,392.24/66,076.28
  6. Step 6: Final answer
    x = 54,121.52

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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.