Home / 66,027.92-91,130.20-39,185.24

Finding the Fourth Proportional to 66,027.92, 91,130.20 and 39,185.24

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Solution

The fourth proportional to 66,027.92, 91,130.20 and 39,185.24 is: 54,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,027.92 : 91,130.20 = 39,185.24 : x
  2. Step 2: Convert to fraction form
    66,027.92/91,130.20 = 39,185.24/x
  3. Step 3: Cross multiply
    66,027.92x = 91,130.20 × 39,185.24
  4. Step 4: Simplify right side
    66,027.92x = 3,570,958,758.25
  5. Step 5: Solve for x
    x = 3,570,958,758.25/66,027.92
  6. Step 6: Final answer
    x = 54,082.56

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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.