Home / 81,650.24-122,438.42-29,061.12

Finding the Fourth Proportional to 81,650.24, 122,438.42 and 29,061.12

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Solution

The fourth proportional to 81,650.24, 122,438.42 and 29,061.12 is: 43,578.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,650.24 : 122,438.42 = 29,061.12 : x
  2. Step 2: Convert to fraction form
    81,650.24/122,438.42 = 29,061.12/x
  3. Step 3: Cross multiply
    81,650.24x = 122,438.42 × 29,061.12
  4. Step 4: Simplify right side
    81,650.24x = 3,558,197,616.23
  5. Step 5: Solve for x
    x = 3,558,197,616.23/81,650.24
  6. Step 6: Final answer
    x = 43,578.53

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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.