Home / 45,613.53-62,871.30-30,500.61

Finding the Fourth Proportional to 45,613.53, 62,871.30 and 30,500.61

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Solution

The fourth proportional to 45,613.53, 62,871.30 and 30,500.61 is: 42,040.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,613.53 : 62,871.30 = 30,500.61 : x
  2. Step 2: Convert to fraction form
    45,613.53/62,871.30 = 30,500.61/x
  3. Step 3: Cross multiply
    45,613.53x = 62,871.30 × 30,500.61
  4. Step 4: Simplify right side
    45,613.53x = 1,917,613,001.49
  5. Step 5: Solve for x
    x = 1,917,613,001.49/45,613.53
  6. Step 6: Final answer
    x = 42,040.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.