Home / 79,243.05-109,353.09-43,432.41

Finding the Fourth Proportional to 79,243.05, 109,353.09 and 43,432.41

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Solution

The fourth proportional to 79,243.05, 109,353.09 and 43,432.41 is: 59,935.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,243.05 : 109,353.09 = 43,432.41 : x
  2. Step 2: Convert to fraction form
    79,243.05/109,353.09 = 43,432.41/x
  3. Step 3: Cross multiply
    79,243.05x = 109,353.09 × 43,432.41
  4. Step 4: Simplify right side
    79,243.05x = 4,749,468,239.65
  5. Step 5: Solve for x
    x = 4,749,468,239.65/79,243.05
  6. Step 6: Final answer
    x = 59,935.45

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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.