Home / 69,165.20-103,581.50-39,493.12

Finding the Fourth Proportional to 69,165.20, 103,581.50 and 39,493.12

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Solution

The fourth proportional to 69,165.20, 103,581.50 and 39,493.12 is: 59,144.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,165.20 : 103,581.50 = 39,493.12 : x
  2. Step 2: Convert to fraction form
    69,165.20/103,581.50 = 39,493.12/x
  3. Step 3: Cross multiply
    69,165.20x = 103,581.50 × 39,493.12
  4. Step 4: Simplify right side
    69,165.20x = 4,090,756,609.28
  5. Step 5: Solve for x
    x = 4,090,756,609.28/69,165.20
  6. Step 6: Final answer
    x = 59,144.72

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1.5x scale

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.