Home / 83,396.63-125,107.90-28,005.59

Finding the Fourth Proportional to 83,396.63, 125,107.90 and 28,005.59

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Solution

The fourth proportional to 83,396.63, 125,107.90 and 28,005.59 is: 42,012.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,396.63 : 125,107.90 = 28,005.59 : x
  2. Step 2: Convert to fraction form
    83,396.63/125,107.90 = 28,005.59/x
  3. Step 3: Cross multiply
    83,396.63x = 125,107.90 × 28,005.59
  4. Step 4: Simplify right side
    83,396.63x = 3,503,719,857.61
  5. Step 5: Solve for x
    x = 3,503,719,857.61/83,396.63
  6. Step 6: Final answer
    x = 42,012.73

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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.