Home / 83,717.66-115,560.70-55,432.46

Finding the Fourth Proportional to 83,717.66, 115,560.70 and 55,432.46

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Solution

The fourth proportional to 83,717.66, 115,560.70 and 55,432.46 is: 76,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,717.66 : 115,560.70 = 55,432.46 : x
  2. Step 2: Convert to fraction form
    83,717.66/115,560.70 = 55,432.46/x
  3. Step 3: Cross multiply
    83,717.66x = 115,560.70 × 55,432.46
  4. Step 4: Simplify right side
    83,717.66x = 6,405,813,880.32
  5. Step 5: Solve for x
    x = 6,405,813,880.32/83,717.66
  6. Step 6: Final answer
    x = 76,516.88

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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.