Home / 84,839.49-127,259.54-28,680.06

Finding the Fourth Proportional to 84,839.49, 127,259.54 and 28,680.06

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Solution

The fourth proportional to 84,839.49, 127,259.54 and 28,680.06 is: 43,020.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,839.49 : 127,259.54 = 28,680.06 : x
  2. Step 2: Convert to fraction form
    84,839.49/127,259.54 = 28,680.06/x
  3. Step 3: Cross multiply
    84,839.49x = 127,259.54 × 28,680.06
  4. Step 4: Simplify right side
    84,839.49x = 3,649,811,099.37
  5. Step 5: Solve for x
    x = 3,649,811,099.37/84,839.49
  6. Step 6: Final answer
    x = 43,020.19

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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.