Home / 69,813.90-104,728.14-40,265.10

Finding the Fourth Proportional to 69,813.90, 104,728.14 and 40,265.10

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Solution

The fourth proportional to 69,813.90, 104,728.14 and 40,265.10 is: 60,401.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,813.90 : 104,728.14 = 40,265.10 : x
  2. Step 2: Convert to fraction form
    69,813.90/104,728.14 = 40,265.10/x
  3. Step 3: Cross multiply
    69,813.90x = 104,728.14 × 40,265.10
  4. Step 4: Simplify right side
    69,813.90x = 4,216,889,029.91
  5. Step 5: Solve for x
    x = 4,216,889,029.91/69,813.90
  6. Step 6: Final answer
    x = 60,401.85

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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.