Home / 55,161-76,122.18-30,010.68

Finding the Fourth Proportional to 55,161, 76,122.18 and 30,010.68

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Solution

The fourth proportional to 55,161, 76,122.18 and 30,010.68 is: 41,414.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,161 : 76,122.18 = 30,010.68 : x
  2. Step 2: Convert to fraction form
    55,161/76,122.18 = 30,010.68/x
  3. Step 3: Cross multiply
    55,161x = 76,122.18 × 30,010.68
  4. Step 4: Simplify right side
    55,161x = 2,284,478,384.88
  5. Step 5: Solve for x
    x = 2,284,478,384.88/55,161
  6. Step 6: Final answer
    x = 41,414.74

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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.