Home / 79,257.72-109,386.84-49,052.76

Finding the Fourth Proportional to 79,257.72, 109,386.84 and 49,052.76

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Solution

The fourth proportional to 79,257.72, 109,386.84 and 49,052.76 is: 67,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,257.72 : 109,386.84 = 49,052.76 : x
  2. Step 2: Convert to fraction form
    79,257.72/109,386.84 = 49,052.76/x
  3. Step 3: Cross multiply
    79,257.72x = 109,386.84 × 49,052.76
  4. Step 4: Simplify right side
    79,257.72x = 5,365,726,409.68
  5. Step 5: Solve for x
    x = 5,365,726,409.68/79,257.72
  6. Step 6: Final answer
    x = 67,699.73

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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.