Home / 55,091.49-82,637.78-21,819.66

Finding the Fourth Proportional to 55,091.49, 82,637.78 and 21,819.66

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Solution

The fourth proportional to 55,091.49, 82,637.78 and 21,819.66 is: 32,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,091.49 : 82,637.78 = 21,819.66 : x
  2. Step 2: Convert to fraction form
    55,091.49/82,637.78 = 21,819.66/x
  3. Step 3: Cross multiply
    55,091.49x = 82,637.78 × 21,819.66
  4. Step 4: Simplify right side
    55,091.49x = 1,803,128,153.66
  5. Step 5: Solve for x
    x = 1,803,128,153.66/55,091.49
  6. Step 6: Final answer
    x = 32,729.70

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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.