Home / 55,425.10-83,170.43-20,389.34

Finding the Fourth Proportional to 55,425.10, 83,170.43 and 20,389.34

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Solution

The fourth proportional to 55,425.10, 83,170.43 and 20,389.34 is: 30,596.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,425.10 : 83,170.43 = 20,389.34 : x
  2. Step 2: Convert to fraction form
    55,425.10/83,170.43 = 20,389.34/x
  3. Step 3: Cross multiply
    55,425.10x = 83,170.43 × 20,389.34
  4. Step 4: Simplify right side
    55,425.10x = 1,695,790,175.22
  5. Step 5: Solve for x
    x = 1,695,790,175.22/55,425.10
  6. Step 6: Final answer
    x = 30,596.07

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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.