Home / 66,542.05-91,823.90-36,321.20

Finding the Fourth Proportional to 66,542.05, 91,823.90 and 36,321.20

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Solution

The fourth proportional to 66,542.05, 91,823.90 and 36,321.20 is: 50,121.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,542.05 : 91,823.90 = 36,321.20 : x
  2. Step 2: Convert to fraction form
    66,542.05/91,823.90 = 36,321.20/x
  3. Step 3: Cross multiply
    66,542.05x = 91,823.90 × 36,321.20
  4. Step 4: Simplify right side
    66,542.05x = 3,335,154,557.04
  5. Step 5: Solve for x
    x = 3,335,154,557.04/66,542.05
  6. Step 6: Final answer
    x = 50,121.01

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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.