Home / 69,721.76-96,219.72-39,512.96

Finding the Fourth Proportional to 69,721.76, 96,219.72 and 39,512.96

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Solution

The fourth proportional to 69,721.76, 96,219.72 and 39,512.96 is: 54,529.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,721.76 : 96,219.72 = 39,512.96 : x
  2. Step 2: Convert to fraction form
    69,721.76/96,219.72 = 39,512.96/x
  3. Step 3: Cross multiply
    69,721.76x = 96,219.72 × 39,512.96
  4. Step 4: Simplify right side
    69,721.76x = 3,801,925,947.57
  5. Step 5: Solve for x
    x = 3,801,925,947.57/69,721.76
  6. Step 6: Final answer
    x = 54,529.98

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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.