Home / 74,116.39-111,140.96-31,976.54

Finding the Fourth Proportional to 74,116.39, 111,140.96 and 31,976.54

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Solution

The fourth proportional to 74,116.39, 111,140.96 and 31,976.54 is: 47,950.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,116.39 : 111,140.96 = 31,976.54 : x
  2. Step 2: Convert to fraction form
    74,116.39/111,140.96 = 31,976.54/x
  3. Step 3: Cross multiply
    74,116.39x = 111,140.96 × 31,976.54
  4. Step 4: Simplify right side
    74,116.39x = 3,553,903,353.08
  5. Step 5: Solve for x
    x = 3,553,903,353.08/74,116.39
  6. Step 6: Final answer
    x = 47,950.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.