Home / 55,215.40-82,823.10-20,168.73

Finding the Fourth Proportional to 55,215.40, 82,823.10 and 20,168.73

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Solution

The fourth proportional to 55,215.40, 82,823.10 and 20,168.73 is: 30,253.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,215.40 : 82,823.10 = 20,168.73 : x
  2. Step 2: Convert to fraction form
    55,215.40/82,823.10 = 20,168.73/x
  3. Step 3: Cross multiply
    55,215.40x = 82,823.10 × 20,168.73
  4. Step 4: Simplify right side
    55,215.40x = 1,670,436,741.66
  5. Step 5: Solve for x
    x = 1,670,436,741.66/55,215.40
  6. Step 6: Final answer
    x = 30,253.10

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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.