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Finding the Fourth Proportional to 79,109.44, 109,202.52 and 51,895.90

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Solution

The fourth proportional to 79,109.44, 109,202.52 and 51,895.90 is: 71,637.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,109.44 : 109,202.52 = 51,895.90 : x
  2. Step 2: Convert to fraction form
    79,109.44/109,202.52 = 51,895.90/x
  3. Step 3: Cross multiply
    79,109.44x = 109,202.52 × 51,895.90
  4. Step 4: Simplify right side
    79,109.44x = 5,667,163,057.67
  5. Step 5: Solve for x
    x = 5,667,163,057.67/79,109.44
  6. Step 6: Final answer
    x = 71,637.00

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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.