Home / 83,717.22-115,560.09-55,432.02

Finding the Fourth Proportional to 83,717.22, 115,560.09 and 55,432.02

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Solution

The fourth proportional to 83,717.22, 115,560.09 and 55,432.02 is: 76,516.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,717.22 : 115,560.09 = 55,432.02 : x
  2. Step 2: Convert to fraction form
    83,717.22/115,560.09 = 55,432.02/x
  3. Step 3: Cross multiply
    83,717.22x = 115,560.09 × 55,432.02
  4. Step 4: Simplify right side
    83,717.22x = 6,405,729,220.08
  5. Step 5: Solve for x
    x = 6,405,729,220.08/83,717.22
  6. Step 6: Final answer
    x = 76,516.27

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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.