Home / 84,749.75-127,142.85-28,591.25

Finding the Fourth Proportional to 84,749.75, 127,142.85 and 28,591.25

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Solution

The fourth proportional to 84,749.75, 127,142.85 and 28,591.25 is: 42,893.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,749.75 : 127,142.85 = 28,591.25 : x
  2. Step 2: Convert to fraction form
    84,749.75/127,142.85 = 28,591.25/x
  3. Step 3: Cross multiply
    84,749.75x = 127,142.85 × 28,591.25
  4. Step 4: Simplify right side
    84,749.75x = 3,635,173,010.06
  5. Step 5: Solve for x
    x = 3,635,173,010.06/84,749.75
  6. Step 6: Final answer
    x = 42,893.02

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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.