Home / 57,946.20-86,919.30-18,504.60

Finding the Fourth Proportional to 57,946.20, 86,919.30 and 18,504.60

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Solution

The fourth proportional to 57,946.20, 86,919.30 and 18,504.60 is: 27,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,946.20 : 86,919.30 = 18,504.60 : x
  2. Step 2: Convert to fraction form
    57,946.20/86,919.30 = 18,504.60/x
  3. Step 3: Cross multiply
    57,946.20x = 86,919.30 × 18,504.60
  4. Step 4: Simplify right side
    57,946.20x = 1,608,406,878.78
  5. Step 5: Solve for x
    x = 1,608,406,878.78/57,946.20
  6. Step 6: Final answer
    x = 27,756.90

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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.