Home / 79,678.26-109,956.87-43,869.15

Finding the Fourth Proportional to 79,678.26, 109,956.87 and 43,869.15

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Solution

The fourth proportional to 79,678.26, 109,956.87 and 43,869.15 is: 60,539.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,678.26 : 109,956.87 = 43,869.15 : x
  2. Step 2: Convert to fraction form
    79,678.26/109,956.87 = 43,869.15/x
  3. Step 3: Cross multiply
    79,678.26x = 109,956.87 × 43,869.15
  4. Step 4: Simplify right side
    79,678.26x = 4,823,714,423.56
  5. Step 5: Solve for x
    x = 4,823,714,423.56/79,678.26
  6. Step 6: Final answer
    x = 60,539.91

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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.