Home / 79,135.72-109,207.61-43,329.06

Finding the Fourth Proportional to 79,135.72, 109,207.61 and 43,329.06

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Solution

The fourth proportional to 79,135.72, 109,207.61 and 43,329.06 is: 59,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,135.72 : 109,207.61 = 43,329.06 : x
  2. Step 2: Convert to fraction form
    79,135.72/109,207.61 = 43,329.06/x
  3. Step 3: Cross multiply
    79,135.72x = 109,207.61 × 43,329.06
  4. Step 4: Simplify right side
    79,135.72x = 4,731,862,869.50
  5. Step 5: Solve for x
    x = 4,731,862,869.50/79,135.72
  6. Step 6: Final answer
    x = 59,794.28

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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.