Home / 79,377.17-109,583.08-61,321.46

Finding the Fourth Proportional to 79,377.17, 109,583.08 and 61,321.46

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Solution

The fourth proportional to 79,377.17, 109,583.08 and 61,321.46 is: 84,656.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,377.17 : 109,583.08 = 61,321.46 : x
  2. Step 2: Convert to fraction form
    79,377.17/109,583.08 = 61,321.46/x
  3. Step 3: Cross multiply
    79,377.17x = 109,583.08 × 61,321.46
  4. Step 4: Simplify right side
    79,377.17x = 6,719,793,755.68
  5. Step 5: Solve for x
    x = 6,719,793,755.68/79,377.17
  6. Step 6: Final answer
    x = 84,656.51

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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.