Home / 83,979.18-125,999.46-39,021.30

Finding the Fourth Proportional to 83,979.18, 125,999.46 and 39,021.30

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Solution

The fourth proportional to 83,979.18, 125,999.46 and 39,021.30 is: 58,546.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,979.18 : 125,999.46 = 39,021.30 : x
  2. Step 2: Convert to fraction form
    83,979.18/125,999.46 = 39,021.30/x
  3. Step 3: Cross multiply
    83,979.18x = 125,999.46 × 39,021.30
  4. Step 4: Simplify right side
    83,979.18x = 4,916,662,728.50
  5. Step 5: Solve for x
    x = 4,916,662,728.50/83,979.18
  6. Step 6: Final answer
    x = 58,546.21

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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.