Home / 55,125.18-82,638.54-20,040.12

Finding the Fourth Proportional to 55,125.18, 82,638.54 and 20,040.12

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Solution

The fourth proportional to 55,125.18, 82,638.54 and 20,040.12 is: 30,042.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,125.18 : 82,638.54 = 20,040.12 : x
  2. Step 2: Convert to fraction form
    55,125.18/82,638.54 = 20,040.12/x
  3. Step 3: Cross multiply
    55,125.18x = 82,638.54 × 20,040.12
  4. Step 4: Simplify right side
    55,125.18x = 1,656,086,258.22
  5. Step 5: Solve for x
    x = 1,656,086,258.22/55,125.18
  6. Step 6: Final answer
    x = 30,042.28

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1.5x scale

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.