Home / 83,394.90-125,091.24-20,215.58

Finding the Fourth Proportional to 83,394.90, 125,091.24 and 20,215.58

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Solution

The fourth proportional to 83,394.90, 125,091.24 and 20,215.58 is: 30,323.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,394.90 : 125,091.24 = 20,215.58 : x
  2. Step 2: Convert to fraction form
    83,394.90/125,091.24 = 20,215.58/x
  3. Step 3: Cross multiply
    83,394.90x = 125,091.24 × 20,215.58
  4. Step 4: Simplify right side
    83,394.90x = 2,528,791,344.06
  5. Step 5: Solve for x
    x = 2,528,791,344.06/83,394.90
  6. Step 6: Final answer
    x = 30,323.09

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1.5x scale

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.