Home / 79,186.86-109,278.18-43,377.12

Finding the Fourth Proportional to 79,186.86, 109,278.18 and 43,377.12

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Solution

The fourth proportional to 79,186.86, 109,278.18 and 43,377.12 is: 59,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,186.86 : 109,278.18 = 43,377.12 : x
  2. Step 2: Convert to fraction form
    79,186.86/109,278.18 = 43,377.12/x
  3. Step 3: Cross multiply
    79,186.86x = 109,278.18 × 43,377.12
  4. Step 4: Simplify right side
    79,186.86x = 4,740,172,727.24
  5. Step 5: Solve for x
    x = 4,740,172,727.24/79,186.86
  6. Step 6: Final answer
    x = 59,860.60

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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.