Home / 69,421.40-104,121.30-19,496.60

Finding the Fourth Proportional to 69,421.40, 104,121.30 and 19,496.60

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Solution

The fourth proportional to 69,421.40, 104,121.30 and 19,496.60 is: 29,241.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,421.40 : 104,121.30 = 19,496.60 : x
  2. Step 2: Convert to fraction form
    69,421.40/104,121.30 = 19,496.60/x
  3. Step 3: Cross multiply
    69,421.40x = 104,121.30 × 19,496.60
  4. Step 4: Simplify right side
    69,421.40x = 2,030,011,337.58
  5. Step 5: Solve for x
    x = 2,030,011,337.58/69,421.40
  6. Step 6: Final answer
    x = 29,241.87

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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.