Home / 75,474.12-113,215.07-19,314.73

Finding the Fourth Proportional to 75,474.12, 113,215.07 and 19,314.73

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Solution

The fourth proportional to 75,474.12, 113,215.07 and 19,314.73 is: 28,973.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,474.12 : 113,215.07 = 19,314.73 : x
  2. Step 2: Convert to fraction form
    75,474.12/113,215.07 = 19,314.73/x
  3. Step 3: Cross multiply
    75,474.12x = 113,215.07 × 19,314.73
  4. Step 4: Simplify right side
    75,474.12x = 2,186,718,508.98
  5. Step 5: Solve for x
    x = 2,186,718,508.98/75,474.12
  6. Step 6: Final answer
    x = 28,973.09

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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.