Home / 82,781.48-114,278.10-50,977.64

Finding the Fourth Proportional to 82,781.48, 114,278.10 and 50,977.64

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Solution

The fourth proportional to 82,781.48, 114,278.10 and 50,977.64 is: 70,373.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,781.48 : 114,278.10 = 50,977.64 : x
  2. Step 2: Convert to fraction form
    82,781.48/114,278.10 = 50,977.64/x
  3. Step 3: Cross multiply
    82,781.48x = 114,278.10 × 50,977.64
  4. Step 4: Simplify right side
    82,781.48x = 5,825,627,841.68
  5. Step 5: Solve for x
    x = 5,825,627,841.68/82,781.48
  6. Step 6: Final answer
    x = 70,373.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.