Home / 76,765.03-115,035.55-34,018.90

Finding the Fourth Proportional to 76,765.03, 115,035.55 and 34,018.90

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Solution

The fourth proportional to 76,765.03, 115,035.55 and 34,018.90 is: 50,978.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,765.03 : 115,035.55 = 34,018.90 : x
  2. Step 2: Convert to fraction form
    76,765.03/115,035.55 = 34,018.90/x
  3. Step 3: Cross multiply
    76,765.03x = 115,035.55 × 34,018.90
  4. Step 4: Simplify right side
    76,765.03x = 3,913,382,871.90
  5. Step 5: Solve for x
    x = 3,913,382,871.90/76,765.03
  6. Step 6: Final answer
    x = 50,978.72

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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.