Home / 76,886.27-106,100.64-45,076.35

Finding the Fourth Proportional to 76,886.27, 106,100.64 and 45,076.35

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Solution

The fourth proportional to 76,886.27, 106,100.64 and 45,076.35 is: 62,203.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,886.27 : 106,100.64 = 45,076.35 : x
  2. Step 2: Convert to fraction form
    76,886.27/106,100.64 = 45,076.35/x
  3. Step 3: Cross multiply
    76,886.27x = 106,100.64 × 45,076.35
  4. Step 4: Simplify right side
    76,886.27x = 4,782,629,583.86
  5. Step 5: Solve for x
    x = 4,782,629,583.86/76,886.27
  6. Step 6: Final answer
    x = 62,203.95

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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.