Home / 78,125.10-117,169.04-33,727.56

Finding the Fourth Proportional to 78,125.10, 117,169.04 and 33,727.56

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Solution

The fourth proportional to 78,125.10, 117,169.04 and 33,727.56 is: 50,583.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,125.10 : 117,169.04 = 33,727.56 : x
  2. Step 2: Convert to fraction form
    78,125.10/117,169.04 = 33,727.56/x
  3. Step 3: Cross multiply
    78,125.10x = 117,169.04 × 33,727.56
  4. Step 4: Simplify right side
    78,125.10x = 3,951,825,826.74
  5. Step 5: Solve for x
    x = 3,951,825,826.74/78,125.10
  6. Step 6: Final answer
    x = 50,583.31

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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.