Home / 55,114.10-82,613.55-30,115.70

Finding the Fourth Proportional to 55,114.10, 82,613.55 and 30,115.70

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Solution

The fourth proportional to 55,114.10, 82,613.55 and 30,115.70 is: 45,142.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,114.10 : 82,613.55 = 30,115.70 : x
  2. Step 2: Convert to fraction form
    55,114.10/82,613.55 = 30,115.70/x
  3. Step 3: Cross multiply
    55,114.10x = 82,613.55 × 30,115.70
  4. Step 4: Simplify right side
    55,114.10x = 2,487,964,887.74
  5. Step 5: Solve for x
    x = 2,487,964,887.74/55,114.10
  6. Step 6: Final answer
    x = 45,142.08

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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.