Home / 84,928.73-127,405.10-28,784.84

Finding the Fourth Proportional to 84,928.73, 127,405.10 and 28,784.84

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Solution

The fourth proportional to 84,928.73, 127,405.10 and 28,784.84 is: 43,181.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,928.73 : 127,405.10 = 28,784.84 : x
  2. Step 2: Convert to fraction form
    84,928.73/127,405.10 = 28,784.84/x
  3. Step 3: Cross multiply
    84,928.73x = 127,405.10 × 28,784.84
  4. Step 4: Simplify right side
    84,928.73x = 3,667,334,853.62
  5. Step 5: Solve for x
    x = 3,667,334,853.62/84,928.73
  6. Step 6: Final answer
    x = 43,181.32

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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.