Home / 103,904.53-155,575.69-53,879.47

Finding the Fourth Proportional to 103,904.53, 155,575.69 and 53,879.47

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Solution

The fourth proportional to 103,904.53, 155,575.69 and 53,879.47 is: 80,673.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,904.53 : 155,575.69 = 53,879.47 : x
  2. Step 2: Convert to fraction form
    103,904.53/155,575.69 = 53,879.47/x
  3. Step 3: Cross multiply
    103,904.53x = 155,575.69 × 53,879.47
  4. Step 4: Simplify right side
    103,904.53x = 8,382,335,722.08
  5. Step 5: Solve for x
    x = 8,382,335,722.08/103,904.53
  6. Step 6: Final answer
    x = 80,673.44

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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.