Home / 86,177.25-118,926.09-47,939.85

Finding the Fourth Proportional to 86,177.25, 118,926.09 and 47,939.85

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Solution

The fourth proportional to 86,177.25, 118,926.09 and 47,939.85 is: 66,157.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,177.25 : 118,926.09 = 47,939.85 : x
  2. Step 2: Convert to fraction form
    86,177.25/118,926.09 = 47,939.85/x
  3. Step 3: Cross multiply
    86,177.25x = 118,926.09 × 47,939.85
  4. Step 4: Simplify right side
    86,177.25x = 5,701,298,915.69
  5. Step 5: Solve for x
    x = 5,701,298,915.69/86,177.25
  6. Step 6: Final answer
    x = 66,157.82

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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.