Home / 84,870.70-127,321.56-27,947.84

Finding the Fourth Proportional to 84,870.70, 127,321.56 and 27,947.84

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Solution

The fourth proportional to 84,870.70, 127,321.56 and 27,947.84 is: 41,926.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,870.70 : 127,321.56 = 27,947.84 : x
  2. Step 2: Convert to fraction form
    84,870.70/127,321.56 = 27,947.84/x
  3. Step 3: Cross multiply
    84,870.70x = 127,321.56 × 27,947.84
  4. Step 4: Simplify right side
    84,870.70x = 3,558,362,587.43
  5. Step 5: Solve for x
    x = 3,558,362,587.43/84,870.70
  6. Step 6: Final answer
    x = 41,926.87

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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.