Home / 69,390.18-104,015.85-31,977.27

Finding the Fourth Proportional to 69,390.18, 104,015.85 and 31,977.27

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Solution

The fourth proportional to 69,390.18, 104,015.85 and 31,977.27 is: 47,933.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,390.18 : 104,015.85 = 31,977.27 : x
  2. Step 2: Convert to fraction form
    69,390.18/104,015.85 = 31,977.27/x
  3. Step 3: Cross multiply
    69,390.18x = 104,015.85 × 31,977.27
  4. Step 4: Simplify right side
    69,390.18x = 3,326,142,919.73
  5. Step 5: Solve for x
    x = 3,326,142,919.73/69,390.18
  6. Step 6: Final answer
    x = 47,933.91

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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.