Home / 79,579.62-109,820.75-43,769.93

Finding the Fourth Proportional to 79,579.62, 109,820.75 and 43,769.93

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Solution

The fourth proportional to 79,579.62, 109,820.75 and 43,769.93 is: 60,402.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,579.62 : 109,820.75 = 43,769.93 : x
  2. Step 2: Convert to fraction form
    79,579.62/109,820.75 = 43,769.93/x
  3. Step 3: Cross multiply
    79,579.62x = 109,820.75 × 43,769.93
  4. Step 4: Simplify right side
    79,579.62x = 4,806,845,772.09
  5. Step 5: Solve for x
    x = 4,806,845,772.09/79,579.62
  6. Step 6: Final answer
    x = 60,402.97

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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.