Home / 76,989.26-106,215.36-45,146.54

Finding the Fourth Proportional to 76,989.26, 106,215.36 and 45,146.54

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Solution

The fourth proportional to 76,989.26, 106,215.36 and 45,146.54 is: 62,284.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,989.26 : 106,215.36 = 45,146.54 : x
  2. Step 2: Convert to fraction form
    76,989.26/106,215.36 = 45,146.54/x
  3. Step 3: Cross multiply
    76,989.26x = 106,215.36 × 45,146.54
  4. Step 4: Simplify right side
    76,989.26x = 4,795,255,998.85
  5. Step 5: Solve for x
    x = 4,795,255,998.85/76,989.26
  6. Step 6: Final answer
    x = 62,284.74

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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.