Home / 55,154.11-82,714.73-20,085.56

Finding the Fourth Proportional to 55,154.11, 82,714.73 and 20,085.56

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Solution

The fourth proportional to 55,154.11, 82,714.73 and 20,085.56 is: 30,122.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,154.11 : 82,714.73 = 20,085.56 : x
  2. Step 2: Convert to fraction form
    55,154.11/82,714.73 = 20,085.56/x
  3. Step 3: Cross multiply
    55,154.11x = 82,714.73 × 20,085.56
  4. Step 4: Simplify right side
    55,154.11x = 1,661,371,778.66
  5. Step 5: Solve for x
    x = 1,661,371,778.66/55,154.11
  6. Step 6: Final answer
    x = 30,122.36

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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.