Home / 84,872.60-127,322.66-28,716.12

Finding the Fourth Proportional to 84,872.60, 127,322.66 and 28,716.12

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Solution

The fourth proportional to 84,872.60, 127,322.66 and 28,716.12 is: 43,078.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,872.60 : 127,322.66 = 28,716.12 : x
  2. Step 2: Convert to fraction form
    84,872.60/127,322.66 = 28,716.12/x
  3. Step 3: Cross multiply
    84,872.60x = 127,322.66 × 28,716.12
  4. Step 4: Simplify right side
    84,872.60x = 3,656,212,783.28
  5. Step 5: Solve for x
    x = 3,656,212,783.28/84,872.60
  6. Step 6: Final answer
    x = 43,078.84

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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.