Home / 79,276.56-109,379.88-49,047.36

Finding the Fourth Proportional to 79,276.56, 109,379.88 and 49,047.36

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Solution

The fourth proportional to 79,276.56, 109,379.88 and 49,047.36 is: 67,671.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,276.56 : 109,379.88 = 49,047.36 : x
  2. Step 2: Convert to fraction form
    79,276.56/109,379.88 = 49,047.36/x
  3. Step 3: Cross multiply
    79,276.56x = 109,379.88 × 49,047.36
  4. Step 4: Simplify right side
    79,276.56x = 5,364,794,351.12
  5. Step 5: Solve for x
    x = 5,364,794,351.12/79,276.56
  6. Step 6: Final answer
    x = 67,671.89

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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.