Home / 69,327.90-104,101.20-39,803.40

Finding the Fourth Proportional to 69,327.90, 104,101.20 and 39,803.40

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Solution

The fourth proportional to 69,327.90, 104,101.20 and 39,803.40 is: 59,767.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,327.90 : 104,101.20 = 39,803.40 : x
  2. Step 2: Convert to fraction form
    69,327.90/104,101.20 = 39,803.40/x
  3. Step 3: Cross multiply
    69,327.90x = 104,101.20 × 39,803.40
  4. Step 4: Simplify right side
    69,327.90x = 4,143,581,704.08
  5. Step 5: Solve for x
    x = 4,143,581,704.08/69,327.90
  6. Step 6: Final answer
    x = 59,767.88

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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.