Home / 68,934.64-103,490.50-53,149.69

Finding the Fourth Proportional to 68,934.64, 103,490.50 and 53,149.69

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Solution

The fourth proportional to 68,934.64, 103,490.50 and 53,149.69 is: 79,792.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,934.64 : 103,490.50 = 53,149.69 : x
  2. Step 2: Convert to fraction form
    68,934.64/103,490.50 = 53,149.69/x
  3. Step 3: Cross multiply
    68,934.64x = 103,490.50 × 53,149.69
  4. Step 4: Simplify right side
    68,934.64x = 5,500,488,450.98
  5. Step 5: Solve for x
    x = 5,500,488,450.98/68,934.64
  6. Step 6: Final answer
    x = 79,792.81

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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.