Home / 83,971.59-115,872.22-51,701.09

Finding the Fourth Proportional to 83,971.59, 115,872.22 and 51,701.09

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Solution

The fourth proportional to 83,971.59, 115,872.22 and 51,701.09 is: 71,342.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,971.59 : 115,872.22 = 51,701.09 : x
  2. Step 2: Convert to fraction form
    83,971.59/115,872.22 = 51,701.09/x
  3. Step 3: Cross multiply
    83,971.59x = 115,872.22 × 51,701.09
  4. Step 4: Simplify right side
    83,971.59x = 5,990,719,559.99
  5. Step 5: Solve for x
    x = 5,990,719,559.99/83,971.59
  6. Step 6: Final answer
    x = 71,342.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.