Home / 79,047.42-109,125.27-61,101.90

Finding the Fourth Proportional to 79,047.42, 109,125.27 and 61,101.90

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Solution

The fourth proportional to 79,047.42, 109,125.27 and 61,101.90 is: 84,351.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,047.42 : 109,125.27 = 61,101.90 : x
  2. Step 2: Convert to fraction form
    79,047.42/109,125.27 = 61,101.90/x
  3. Step 3: Cross multiply
    79,047.42x = 109,125.27 × 61,101.90
  4. Step 4: Simplify right side
    79,047.42x = 6,667,761,335.01
  5. Step 5: Solve for x
    x = 6,667,761,335.01/79,047.42
  6. Step 6: Final answer
    x = 84,351.41

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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.