Home / 79,115.16-109,178.96-43,305.35

Finding the Fourth Proportional to 79,115.16, 109,178.96 and 43,305.35

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Solution

The fourth proportional to 79,115.16, 109,178.96 and 43,305.35 is: 59,761.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,115.16 : 109,178.96 = 43,305.35 : x
  2. Step 2: Convert to fraction form
    79,115.16/109,178.96 = 43,305.35/x
  3. Step 3: Cross multiply
    79,115.16x = 109,178.96 × 43,305.35
  4. Step 4: Simplify right side
    79,115.16x = 4,728,033,131.86
  5. Step 5: Solve for x
    x = 4,728,033,131.86/79,115.16
  6. Step 6: Final answer
    x = 59,761.41

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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.