Home / 76,146.21-114,094.47-53,919.68

Finding the Fourth Proportional to 76,146.21, 114,094.47 and 53,919.68

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Solution

The fourth proportional to 76,146.21, 114,094.47 and 53,919.68 is: 80,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,146.21 : 114,094.47 = 53,919.68 : x
  2. Step 2: Convert to fraction form
    76,146.21/114,094.47 = 53,919.68/x
  3. Step 3: Cross multiply
    76,146.21x = 114,094.47 × 53,919.68
  4. Step 4: Simplify right side
    76,146.21x = 6,151,936,943.90
  5. Step 5: Solve for x
    x = 6,151,936,943.90/76,146.21
  6. Step 6: Final answer
    x = 80,791.11

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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.