Home / 76,213.11-105,139.14-49,364.25

Finding the Fourth Proportional to 76,213.11, 105,139.14 and 49,364.25

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Solution

The fourth proportional to 76,213.11, 105,139.14 and 49,364.25 is: 68,100.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,213.11 : 105,139.14 = 49,364.25 : x
  2. Step 2: Convert to fraction form
    76,213.11/105,139.14 = 49,364.25/x
  3. Step 3: Cross multiply
    76,213.11x = 105,139.14 × 49,364.25
  4. Step 4: Simplify right side
    76,213.11x = 5,190,114,791.75
  5. Step 5: Solve for x
    x = 5,190,114,791.75/76,213.11
  6. Step 6: Final answer
    x = 68,100.03

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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.