Home / 83,406.08-125,109.54-21,076.64

Finding the Fourth Proportional to 83,406.08, 125,109.54 and 21,076.64

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Solution

The fourth proportional to 83,406.08, 125,109.54 and 21,076.64 is: 31,615.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,406.08 : 125,109.54 = 21,076.64 : x
  2. Step 2: Convert to fraction form
    83,406.08/125,109.54 = 21,076.64/x
  3. Step 3: Cross multiply
    83,406.08x = 125,109.54 × 21,076.64
  4. Step 4: Simplify right side
    83,406.08x = 2,636,888,735.15
  5. Step 5: Solve for x
    x = 2,636,888,735.15/83,406.08
  6. Step 6: Final answer
    x = 31,615.07

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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.