Home / 75,455.76-113,011.40-36,040.64

Finding the Fourth Proportional to 75,455.76, 113,011.40 and 36,040.64

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Solution

The fourth proportional to 75,455.76, 113,011.40 and 36,040.64 is: 53,978.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,455.76 : 113,011.40 = 36,040.64 : x
  2. Step 2: Convert to fraction form
    75,455.76/113,011.40 = 36,040.64/x
  3. Step 3: Cross multiply
    75,455.76x = 113,011.40 × 36,040.64
  4. Step 4: Simplify right side
    75,455.76x = 4,073,003,183.30
  5. Step 5: Solve for x
    x = 4,073,003,183.30/75,455.76
  6. Step 6: Final answer
    x = 53,978.69

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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.