Home / 75,840.61-113,760.96-31,455.44

Finding the Fourth Proportional to 75,840.61, 113,760.96 and 31,455.44

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Solution

The fourth proportional to 75,840.61, 113,760.96 and 31,455.44 is: 47,183.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,840.61 : 113,760.96 = 31,455.44 : x
  2. Step 2: Convert to fraction form
    75,840.61/113,760.96 = 31,455.44/x
  3. Step 3: Cross multiply
    75,840.61x = 113,760.96 × 31,455.44
  4. Step 4: Simplify right side
    75,840.61x = 3,578,400,894.35
  5. Step 5: Solve for x
    x = 3,578,400,894.35/75,840.61
  6. Step 6: Final answer
    x = 47,183.18

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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.