Home / 98,917.41-136,512.72-55,881.97

Finding the Fourth Proportional to 98,917.41, 136,512.72 and 55,881.97

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Solution

The fourth proportional to 98,917.41, 136,512.72 and 55,881.97 is: 77,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,917.41 : 136,512.72 = 55,881.97 : x
  2. Step 2: Convert to fraction form
    98,917.41/136,512.72 = 55,881.97/x
  3. Step 3: Cross multiply
    98,917.41x = 136,512.72 × 55,881.97
  4. Step 4: Simplify right side
    98,917.41x = 7,628,599,444.25
  5. Step 5: Solve for x
    x = 7,628,599,444.25/98,917.41
  6. Step 6: Final answer
    x = 77,120.90

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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.