Home / 79,018.25-109,045.22-43,208.55

Finding the Fourth Proportional to 79,018.25, 109,045.22 and 43,208.55

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Solution

The fourth proportional to 79,018.25, 109,045.22 and 43,208.55 is: 59,627.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,018.25 : 109,045.22 = 43,208.55 : x
  2. Step 2: Convert to fraction form
    79,018.25/109,045.22 = 43,208.55/x
  3. Step 3: Cross multiply
    79,018.25x = 109,045.22 × 43,208.55
  4. Step 4: Simplify right side
    79,018.25x = 4,711,685,624.59
  5. Step 5: Solve for x
    x = 4,711,685,624.59/79,018.25
  6. Step 6: Final answer
    x = 59,627.82

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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.