Home / 79,454.40-109,647.78-43,645.14

Finding the Fourth Proportional to 79,454.40, 109,647.78 and 43,645.14

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Solution

The fourth proportional to 79,454.40, 109,647.78 and 43,645.14 is: 60,230.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,454.40 : 109,647.78 = 43,645.14 : x
  2. Step 2: Convert to fraction form
    79,454.40/109,647.78 = 43,645.14/x
  3. Step 3: Cross multiply
    79,454.40x = 109,647.78 × 43,645.14
  4. Step 4: Simplify right side
    79,454.40x = 4,785,592,708.79
  5. Step 5: Solve for x
    x = 4,785,592,708.79/79,454.40
  6. Step 6: Final answer
    x = 60,230.68

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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.