Home / 98,103.82-135,385.86-55,086.75

Finding the Fourth Proportional to 98,103.82, 135,385.86 and 55,086.75

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Solution

The fourth proportional to 98,103.82, 135,385.86 and 55,086.75 is: 76,021.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,103.82 : 135,385.86 = 55,086.75 : x
  2. Step 2: Convert to fraction form
    98,103.82/135,385.86 = 55,086.75/x
  3. Step 3: Cross multiply
    98,103.82x = 135,385.86 × 55,086.75
  4. Step 4: Simplify right side
    98,103.82x = 7,457,966,722.23
  5. Step 5: Solve for x
    x = 7,457,966,722.23/98,103.82
  6. Step 6: Final answer
    x = 76,021.16

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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.