Home / 75,822.89-113,642.09-53,642.66

Finding the Fourth Proportional to 75,822.89, 113,642.09 and 53,642.66

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Solution

The fourth proportional to 75,822.89, 113,642.09 and 53,642.66 is: 80,398.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,822.89 : 113,642.09 = 53,642.66 : x
  2. Step 2: Convert to fraction form
    75,822.89/113,642.09 = 53,642.66/x
  3. Step 3: Cross multiply
    75,822.89x = 113,642.09 × 53,642.66
  4. Step 4: Simplify right side
    75,822.89x = 6,096,063,360.30
  5. Step 5: Solve for x
    x = 6,096,063,360.30/75,822.89
  6. Step 6: Final answer
    x = 80,398.73

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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.