Home / 76,195.36-105,137.10-47,881

Finding the Fourth Proportional to 76,195.36, 105,137.10 and 47,881

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Solution

The fourth proportional to 76,195.36, 105,137.10 and 47,881 is: 66,067.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,195.36 : 105,137.10 = 47,881 : x
  2. Step 2: Convert to fraction form
    76,195.36/105,137.10 = 47,881/x
  3. Step 3: Cross multiply
    76,195.36x = 105,137.10 × 47,881
  4. Step 4: Simplify right side
    76,195.36x = 5,034,069,485.10
  5. Step 5: Solve for x
    x = 5,034,069,485.10/76,195.36
  6. Step 6: Final answer
    x = 66,067.93

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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.