Home / 97,976.38-146,949.98-31,409.60

Finding the Fourth Proportional to 97,976.38, 146,949.98 and 31,409.60

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Solution

The fourth proportional to 97,976.38, 146,949.98 and 31,409.60 is: 47,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,976.38 : 146,949.98 = 31,409.60 : x
  2. Step 2: Convert to fraction form
    97,976.38/146,949.98 = 31,409.60/x
  3. Step 3: Cross multiply
    97,976.38x = 146,949.98 × 31,409.60
  4. Step 4: Simplify right side
    97,976.38x = 4,615,640,091.81
  5. Step 5: Solve for x
    x = 4,615,640,091.81/97,976.38
  6. Step 6: Final answer
    x = 47,109.72

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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.