Home / 76,449.60-114,655.20-27,190.08

Finding the Fourth Proportional to 76,449.60, 114,655.20 and 27,190.08

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Solution

The fourth proportional to 76,449.60, 114,655.20 and 27,190.08 is: 40,778.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,449.60 : 114,655.20 = 27,190.08 : x
  2. Step 2: Convert to fraction form
    76,449.60/114,655.20 = 27,190.08/x
  3. Step 3: Cross multiply
    76,449.60x = 114,655.20 × 27,190.08
  4. Step 4: Simplify right side
    76,449.60x = 3,117,484,060.42
  5. Step 5: Solve for x
    x = 3,117,484,060.42/76,449.60
  6. Step 6: Final answer
    x = 40,778.29

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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.