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Finding the Fourth Proportional to 101,077, 139,483.38 and 55,755.16

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Solution

The fourth proportional to 101,077, 139,483.38 and 55,755.16 is: 76,940.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,077 : 139,483.38 = 55,755.16 : x
  2. Step 2: Convert to fraction form
    101,077/139,483.38 = 55,755.16/x
  3. Step 3: Cross multiply
    101,077x = 139,483.38 × 55,755.16
  4. Step 4: Simplify right side
    101,077x = 7,776,918,169.24
  5. Step 5: Solve for x
    x = 7,776,918,169.24/101,077
  6. Step 6: Final answer
    x = 76,940.53

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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.