Home / 73,113.24-109,671.48-20,521.56

Finding the Fourth Proportional to 73,113.24, 109,671.48 and 20,521.56

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Solution

The fourth proportional to 73,113.24, 109,671.48 and 20,521.56 is: 30,782.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,113.24 : 109,671.48 = 20,521.56 : x
  2. Step 2: Convert to fraction form
    73,113.24/109,671.48 = 20,521.56/x
  3. Step 3: Cross multiply
    73,113.24x = 109,671.48 × 20,521.56
  4. Step 4: Simplify right side
    73,113.24x = 2,250,629,857.11
  5. Step 5: Solve for x
    x = 2,250,629,857.11/73,113.24
  6. Step 6: Final answer
    x = 30,782.79

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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.