Home / 91,968.95-126,922.97-51,137.66

Finding the Fourth Proportional to 91,968.95, 126,922.97 and 51,137.66

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Solution

The fourth proportional to 91,968.95, 126,922.97 and 51,137.66 is: 70,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,968.95 : 126,922.97 = 51,137.66 : x
  2. Step 2: Convert to fraction form
    91,968.95/126,922.97 = 51,137.66/x
  3. Step 3: Cross multiply
    91,968.95x = 126,922.97 × 51,137.66
  4. Step 4: Simplify right side
    91,968.95x = 6,490,543,179.28
  5. Step 5: Solve for x
    x = 6,490,543,179.28/91,968.95
  6. Step 6: Final answer
    x = 70,573.20

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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.