Home / 49,351.18-68,104.74-28,129.90

Finding the Fourth Proportional to 49,351.18, 68,104.74 and 28,129.90

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Solution

The fourth proportional to 49,351.18, 68,104.74 and 28,129.90 is: 38,819.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,351.18 : 68,104.74 = 28,129.90 : x
  2. Step 2: Convert to fraction form
    49,351.18/68,104.74 = 28,129.90/x
  3. Step 3: Cross multiply
    49,351.18x = 68,104.74 × 28,129.90
  4. Step 4: Simplify right side
    49,351.18x = 1,915,779,525.73
  5. Step 5: Solve for x
    x = 1,915,779,525.73/49,351.18
  6. Step 6: Final answer
    x = 38,819.33

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1.5x scale

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.