Home / 84,828.75-127,222.10-28,667.60

Finding the Fourth Proportional to 84,828.75, 127,222.10 and 28,667.60

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Solution

The fourth proportional to 84,828.75, 127,222.10 and 28,667.60 is: 42,994.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,828.75 : 127,222.10 = 28,667.60 : x
  2. Step 2: Convert to fraction form
    84,828.75/127,222.10 = 28,667.60/x
  3. Step 3: Cross multiply
    84,828.75x = 127,222.10 × 28,667.60
  4. Step 4: Simplify right side
    84,828.75x = 3,647,152,273.96
  5. Step 5: Solve for x
    x = 3,647,152,273.96/84,828.75
  6. Step 6: Final answer
    x = 42,994.29

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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.