Home / 50,972.12-76,429-19,770.92

Finding the Fourth Proportional to 50,972.12, 76,429 and 19,770.92

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Solution

The fourth proportional to 50,972.12, 76,429 and 19,770.92 is: 29,645.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,972.12 : 76,429 = 19,770.92 : x
  2. Step 2: Convert to fraction form
    50,972.12/76,429 = 19,770.92/x
  3. Step 3: Cross multiply
    50,972.12x = 76,429 × 19,770.92
  4. Step 4: Simplify right side
    50,972.12x = 1,511,071,644.68
  5. Step 5: Solve for x
    x = 1,511,071,644.68/50,972.12
  6. Step 6: Final answer
    x = 29,645.06

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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.