Home / 69,039.18-103,662.45-39,490.38

Finding the Fourth Proportional to 69,039.18, 103,662.45 and 39,490.38

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Solution

The fourth proportional to 69,039.18, 103,662.45 and 39,490.38 is: 59,294.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,039.18 : 103,662.45 = 39,490.38 : x
  2. Step 2: Convert to fraction form
    69,039.18/103,662.45 = 39,490.38/x
  3. Step 3: Cross multiply
    69,039.18x = 103,662.45 × 39,490.38
  4. Step 4: Simplify right side
    69,039.18x = 4,093,669,542.23
  5. Step 5: Solve for x
    x = 4,093,669,542.23/69,039.18
  6. Step 6: Final answer
    x = 59,294.87

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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.