Home / 69,387.18-104,011.35-31,974.27

Finding the Fourth Proportional to 69,387.18, 104,011.35 and 31,974.27

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Solution

The fourth proportional to 69,387.18, 104,011.35 and 31,974.27 is: 47,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,387.18 : 104,011.35 = 31,974.27 : x
  2. Step 2: Convert to fraction form
    69,387.18/104,011.35 = 31,974.27/x
  3. Step 3: Cross multiply
    69,387.18x = 104,011.35 × 31,974.27
  4. Step 4: Simplify right side
    69,387.18x = 3,325,686,987.96
  5. Step 5: Solve for x
    x = 3,325,686,987.96/69,387.18
  6. Step 6: Final answer
    x = 47,929.42

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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.