Home / 55,638.82-83,399.91-20,556.10

Finding the Fourth Proportional to 55,638.82, 83,399.91 and 20,556.10

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Solution

The fourth proportional to 55,638.82, 83,399.91 and 20,556.10 is: 30,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,638.82 : 83,399.91 = 20,556.10 : x
  2. Step 2: Convert to fraction form
    55,638.82/83,399.91 = 20,556.10/x
  3. Step 3: Cross multiply
    55,638.82x = 83,399.91 × 20,556.10
  4. Step 4: Simplify right side
    55,638.82x = 1,714,376,889.95
  5. Step 5: Solve for x
    x = 1,714,376,889.95/55,638.82
  6. Step 6: Final answer
    x = 30,812.60

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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.