Home / 79,321.20-109,433.07-50,641.94

Finding the Fourth Proportional to 79,321.20, 109,433.07 and 50,641.94

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Solution

The fourth proportional to 79,321.20, 109,433.07 and 50,641.94 is: 69,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,321.20 : 109,433.07 = 50,641.94 : x
  2. Step 2: Convert to fraction form
    79,321.20/109,433.07 = 50,641.94/x
  3. Step 3: Cross multiply
    79,321.20x = 109,433.07 × 50,641.94
  4. Step 4: Simplify right side
    79,321.20x = 5,541,902,417.79
  5. Step 5: Solve for x
    x = 5,541,902,417.79/79,321.20
  6. Step 6: Final answer
    x = 69,866.60

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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.