Home / 90,568.23-124,940.74-63,725.55

Finding the Fourth Proportional to 90,568.23, 124,940.74 and 63,725.55

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Solution

The fourth proportional to 90,568.23, 124,940.74 and 63,725.55 is: 87,910.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,568.23 : 124,940.74 = 63,725.55 : x
  2. Step 2: Convert to fraction form
    90,568.23/124,940.74 = 63,725.55/x
  3. Step 3: Cross multiply
    90,568.23x = 124,940.74 × 63,725.55
  4. Step 4: Simplify right side
    90,568.23x = 7,961,917,373.91
  5. Step 5: Solve for x
    x = 7,961,917,373.91/90,568.23
  6. Step 6: Final answer
    x = 87,910.71

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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.