Home / 79,788.37-110,108.70-43,979.74

Finding the Fourth Proportional to 79,788.37, 110,108.70 and 43,979.74

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Solution

The fourth proportional to 79,788.37, 110,108.70 and 43,979.74 is: 60,692.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,788.37 : 110,108.70 = 43,979.74 : x
  2. Step 2: Convert to fraction form
    79,788.37/110,108.70 = 43,979.74/x
  3. Step 3: Cross multiply
    79,788.37x = 110,108.70 × 43,979.74
  4. Step 4: Simplify right side
    79,788.37x = 4,842,551,997.74
  5. Step 5: Solve for x
    x = 4,842,551,997.74/79,788.37
  6. Step 6: Final answer
    x = 60,692.45

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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.