Home / 79,040.35-109,025.81-55,158.31

Finding the Fourth Proportional to 79,040.35, 109,025.81 and 55,158.31

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Solution

The fourth proportional to 79,040.35, 109,025.81 and 55,158.31 is: 76,083.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,040.35 : 109,025.81 = 55,158.31 : x
  2. Step 2: Convert to fraction form
    79,040.35/109,025.81 = 55,158.31/x
  3. Step 3: Cross multiply
    79,040.35x = 109,025.81 × 55,158.31
  4. Step 4: Simplify right side
    79,040.35x = 6,013,678,605.06
  5. Step 5: Solve for x
    x = 6,013,678,605.06/79,040.35
  6. Step 6: Final answer
    x = 76,083.66

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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.