Home / 79,431.32-109,712.94-59,377.75

Finding the Fourth Proportional to 79,431.32, 109,712.94 and 59,377.75

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Solution

The fourth proportional to 79,431.32, 109,712.94 and 59,377.75 is: 82,014.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,431.32 : 109,712.94 = 59,377.75 : x
  2. Step 2: Convert to fraction form
    79,431.32/109,712.94 = 59,377.75/x
  3. Step 3: Cross multiply
    79,431.32x = 109,712.94 × 59,377.75
  4. Step 4: Simplify right side
    79,431.32x = 6,514,507,523.09
  5. Step 5: Solve for x
    x = 6,514,507,523.09/79,431.32
  6. Step 6: Final answer
    x = 82,014.34

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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.