Home / 53,171.60-79,768.20-18,114.80

Finding the Fourth Proportional to 53,171.60, 79,768.20 and 18,114.80

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Solution

The fourth proportional to 53,171.60, 79,768.20 and 18,114.80 is: 27,175.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,171.60 : 79,768.20 = 18,114.80 : x
  2. Step 2: Convert to fraction form
    53,171.60/79,768.20 = 18,114.80/x
  3. Step 3: Cross multiply
    53,171.60x = 79,768.20 × 18,114.80
  4. Step 4: Simplify right side
    53,171.60x = 1,444,984,989.36
  5. Step 5: Solve for x
    x = 1,444,984,989.36/53,171.60
  6. Step 6: Final answer
    x = 27,175.88

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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.