Home / 83,980.90-115,901.82-62,723.26

Finding the Fourth Proportional to 83,980.90, 115,901.82 and 62,723.26

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Solution

The fourth proportional to 83,980.90, 115,901.82 and 62,723.26 is: 86,564.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,980.90 : 115,901.82 = 62,723.26 : x
  2. Step 2: Convert to fraction form
    83,980.90/115,901.82 = 62,723.26/x
  3. Step 3: Cross multiply
    83,980.90x = 115,901.82 × 62,723.26
  4. Step 4: Simplify right side
    83,980.90x = 7,269,739,990.33
  5. Step 5: Solve for x
    x = 7,269,739,990.33/83,980.90
  6. Step 6: Final answer
    x = 86,564.21

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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.