Home / 80,939.92-121,485.72-49,835.92

Finding the Fourth Proportional to 80,939.92, 121,485.72 and 49,835.92

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Solution

The fourth proportional to 80,939.92, 121,485.72 and 49,835.92 is: 74,800.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,939.92 : 121,485.72 = 49,835.92 : x
  2. Step 2: Convert to fraction form
    80,939.92/121,485.72 = 49,835.92/x
  3. Step 3: Cross multiply
    80,939.92x = 121,485.72 × 49,835.92
  4. Step 4: Simplify right side
    80,939.92x = 6,054,352,623.06
  5. Step 5: Solve for x
    x = 6,054,352,623.06/80,939.92
  6. Step 6: Final answer
    x = 74,800.58

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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.