Home / 55,188.53-82,795.13-20,128.18

Finding the Fourth Proportional to 55,188.53, 82,795.13 and 20,128.18

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Solution

The fourth proportional to 55,188.53, 82,795.13 and 20,128.18 is: 30,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,188.53 : 82,795.13 = 20,128.18 : x
  2. Step 2: Convert to fraction form
    55,188.53/82,795.13 = 20,128.18/x
  3. Step 3: Cross multiply
    55,188.53x = 82,795.13 × 20,128.18
  4. Step 4: Simplify right side
    55,188.53x = 1,666,515,594.61
  5. Step 5: Solve for x
    x = 1,666,515,594.61/55,188.53
  6. Step 6: Final answer
    x = 30,196.78

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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.