Home / 75,021.03-103,480.25-48,120.93

Finding the Fourth Proportional to 75,021.03, 103,480.25 and 48,120.93

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Solution

The fourth proportional to 75,021.03, 103,480.25 and 48,120.93 is: 66,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,021.03 : 103,480.25 = 48,120.93 : x
  2. Step 2: Convert to fraction form
    75,021.03/103,480.25 = 48,120.93/x
  3. Step 3: Cross multiply
    75,021.03x = 103,480.25 × 48,120.93
  4. Step 4: Simplify right side
    75,021.03x = 4,979,565,626.03
  5. Step 5: Solve for x
    x = 4,979,565,626.03/75,021.03
  6. Step 6: Final answer
    x = 66,375.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.