Home / 80,627.08-120,939.61-49,045.79

Finding the Fourth Proportional to 80,627.08, 120,939.61 and 49,045.79

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Solution

The fourth proportional to 80,627.08, 120,939.61 and 49,045.79 is: 73,568.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,627.08 : 120,939.61 = 49,045.79 : x
  2. Step 2: Convert to fraction form
    80,627.08/120,939.61 = 49,045.79/x
  3. Step 3: Cross multiply
    80,627.08x = 120,939.61 × 49,045.79
  4. Step 4: Simplify right side
    80,627.08x = 5,931,578,714.74
  5. Step 5: Solve for x
    x = 5,931,578,714.74/80,627.08
  6. Step 6: Final answer
    x = 73,568.07

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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.