Home / 50,081.07-75,121.61-20,486.91

Finding the Fourth Proportional to 50,081.07, 75,121.61 and 20,486.91

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Solution

The fourth proportional to 50,081.07, 75,121.61 and 20,486.91 is: 30,730.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,081.07 : 75,121.61 = 20,486.91 : x
  2. Step 2: Convert to fraction form
    50,081.07/75,121.61 = 20,486.91/x
  3. Step 3: Cross multiply
    50,081.07x = 75,121.61 × 20,486.91
  4. Step 4: Simplify right side
    50,081.07x = 1,539,009,560.69
  5. Step 5: Solve for x
    x = 1,539,009,560.69/50,081.07
  6. Step 6: Final answer
    x = 30,730.37

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1.5x scale

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.