Home / 55,114.60-82,614.30-30,116.20

Finding the Fourth Proportional to 55,114.60, 82,614.30 and 30,116.20

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Solution

The fourth proportional to 55,114.60, 82,614.30 and 30,116.20 is: 45,142.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,114.60 : 82,614.30 = 30,116.20 : x
  2. Step 2: Convert to fraction form
    55,114.60/82,614.30 = 30,116.20/x
  3. Step 3: Cross multiply
    55,114.60x = 82,614.30 × 30,116.20
  4. Step 4: Simplify right side
    55,114.60x = 2,488,028,781.66
  5. Step 5: Solve for x
    x = 2,488,028,781.66/55,114.60
  6. Step 6: Final answer
    x = 45,142.83

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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.