Home / 84,919.20-127,378.80-34,982.70

Finding the Fourth Proportional to 84,919.20, 127,378.80 and 34,982.70

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Solution

The fourth proportional to 84,919.20, 127,378.80 and 34,982.70 is: 52,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,919.20 : 127,378.80 = 34,982.70 : x
  2. Step 2: Convert to fraction form
    84,919.20/127,378.80 = 34,982.70/x
  3. Step 3: Cross multiply
    84,919.20x = 127,378.80 × 34,982.70
  4. Step 4: Simplify right side
    84,919.20x = 4,456,054,346.76
  5. Step 5: Solve for x
    x = 4,456,054,346.76/84,919.20
  6. Step 6: Final answer
    x = 52,474.05

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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.