Home / 66,145.96-91,282.42-35,931.88

Finding the Fourth Proportional to 66,145.96, 91,282.42 and 35,931.88

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Solution

The fourth proportional to 66,145.96, 91,282.42 and 35,931.88 is: 49,586.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,145.96 : 91,282.42 = 35,931.88 : x
  2. Step 2: Convert to fraction form
    66,145.96/91,282.42 = 35,931.88/x
  3. Step 3: Cross multiply
    66,145.96x = 91,282.42 × 35,931.88
  4. Step 4: Simplify right side
    66,145.96x = 3,279,948,961.55
  5. Step 5: Solve for x
    x = 3,279,948,961.55/66,145.96
  6. Step 6: Final answer
    x = 49,586.54

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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.