Home / 69,942.97-96,518.27-39,728.20

Finding the Fourth Proportional to 69,942.97, 96,518.27 and 39,728.20

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Solution

The fourth proportional to 69,942.97, 96,518.27 and 39,728.20 is: 54,823.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,942.97 : 96,518.27 = 39,728.20 : x
  2. Step 2: Convert to fraction form
    69,942.97/96,518.27 = 39,728.20/x
  3. Step 3: Cross multiply
    69,942.97x = 96,518.27 × 39,728.20
  4. Step 4: Simplify right side
    69,942.97x = 3,834,496,992.24
  5. Step 5: Solve for x
    x = 3,834,496,992.24/69,942.97
  6. Step 6: Final answer
    x = 54,823.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.