Home / 86,179.70-118,926.42-47,939.06

Finding the Fourth Proportional to 86,179.70, 118,926.42 and 47,939.06

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Solution

The fourth proportional to 86,179.70, 118,926.42 and 47,939.06 is: 66,155.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,179.70 : 118,926.42 = 47,939.06 : x
  2. Step 2: Convert to fraction form
    86,179.70/118,926.42 = 47,939.06/x
  3. Step 3: Cross multiply
    86,179.70x = 118,926.42 × 47,939.06
  4. Step 4: Simplify right side
    86,179.70x = 5,701,220,783.97
  5. Step 5: Solve for x
    x = 5,701,220,783.97/86,179.70
  6. Step 6: Final answer
    x = 66,155.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.