Home / 83,395.60-125,107.64-30,805.36

Finding the Fourth Proportional to 83,395.60, 125,107.64 and 30,805.36

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Solution

The fourth proportional to 83,395.60, 125,107.64 and 30,805.36 is: 46,213.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,395.60 : 125,107.64 = 30,805.36 : x
  2. Step 2: Convert to fraction form
    83,395.60/125,107.64 = 30,805.36/x
  3. Step 3: Cross multiply
    83,395.60x = 125,107.64 × 30,805.36
  4. Step 4: Simplify right side
    83,395.60x = 3,853,985,888.95
  5. Step 5: Solve for x
    x = 3,853,985,888.95/83,395.60
  6. Step 6: Final answer
    x = 46,213.30

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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.