Home / 65,444.62-90,311.05-39,993.55

Finding the Fourth Proportional to 65,444.62, 90,311.05 and 39,993.55

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Solution

The fourth proportional to 65,444.62, 90,311.05 and 39,993.55 is: 55,189.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,444.62 : 90,311.05 = 39,993.55 : x
  2. Step 2: Convert to fraction form
    65,444.62/90,311.05 = 39,993.55/x
  3. Step 3: Cross multiply
    65,444.62x = 90,311.05 × 39,993.55
  4. Step 4: Simplify right side
    65,444.62x = 3,611,859,493.73
  5. Step 5: Solve for x
    x = 3,611,859,493.73/65,444.62
  6. Step 6: Final answer
    x = 55,189.56

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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.