Home / 80,902.09-121,257.84-36,476.83

Finding the Fourth Proportional to 80,902.09, 121,257.84 and 36,476.83

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Solution

The fourth proportional to 80,902.09, 121,257.84 and 36,476.83 is: 54,672.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,902.09 : 121,257.84 = 36,476.83 : x
  2. Step 2: Convert to fraction form
    80,902.09/121,257.84 = 36,476.83/x
  3. Step 3: Cross multiply
    80,902.09x = 121,257.84 × 36,476.83
  4. Step 4: Simplify right side
    80,902.09x = 4,423,101,615.85
  5. Step 5: Solve for x
    x = 4,423,101,615.85/80,902.09
  6. Step 6: Final answer
    x = 54,672.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.