Home / 55,173.60-82,752.20-20,105.08

Finding the Fourth Proportional to 55,173.60, 82,752.20 and 20,105.08

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Solution

The fourth proportional to 55,173.60, 82,752.20 and 20,105.08 is: 30,154.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,173.60 : 82,752.20 = 20,105.08 : x
  2. Step 2: Convert to fraction form
    55,173.60/82,752.20 = 20,105.08/x
  3. Step 3: Cross multiply
    55,173.60x = 82,752.20 × 20,105.08
  4. Step 4: Simplify right side
    55,173.60x = 1,663,739,601.18
  5. Step 5: Solve for x
    x = 1,663,739,601.18/55,173.60
  6. Step 6: Final answer
    x = 30,154.63

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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.