Home / 55,091.87-82,638.34-21,820.04

Finding the Fourth Proportional to 55,091.87, 82,638.34 and 21,820.04

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Solution

The fourth proportional to 55,091.87, 82,638.34 and 21,820.04 is: 32,730.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,091.87 : 82,638.34 = 21,820.04 : x
  2. Step 2: Convert to fraction form
    55,091.87/82,638.34 = 21,820.04/x
  3. Step 3: Cross multiply
    55,091.87x = 82,638.34 × 21,820.04
  4. Step 4: Simplify right side
    55,091.87x = 1,803,171,416.59
  5. Step 5: Solve for x
    x = 1,803,171,416.59/55,091.87
  6. Step 6: Final answer
    x = 32,730.27

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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.