Home / 83,389.08-125,083.92-21,059.64

Finding the Fourth Proportional to 83,389.08, 125,083.92 and 21,059.64

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Solution

The fourth proportional to 83,389.08, 125,083.92 and 21,059.64 is: 31,589.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,389.08 : 125,083.92 = 21,059.64 : x
  2. Step 2: Convert to fraction form
    83,389.08/125,083.92 = 21,059.64/x
  3. Step 3: Cross multiply
    83,389.08x = 125,083.92 × 21,059.64
  4. Step 4: Simplify right side
    83,389.08x = 2,634,222,324.99
  5. Step 5: Solve for x
    x = 2,634,222,324.99/83,389.08
  6. Step 6: Final answer
    x = 31,589.54

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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.