Home / 98,104.48-135,380.10-55,665.34

Finding the Fourth Proportional to 98,104.48, 135,380.10 and 55,665.34

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Solution

The fourth proportional to 98,104.48, 135,380.10 and 55,665.34 is: 76,815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,104.48 : 135,380.10 = 55,665.34 : x
  2. Step 2: Convert to fraction form
    98,104.48/135,380.10 = 55,665.34/x
  3. Step 3: Cross multiply
    98,104.48x = 135,380.10 × 55,665.34
  4. Step 4: Simplify right side
    98,104.48x = 7,535,979,295.73
  5. Step 5: Solve for x
    x = 7,535,979,295.73/98,104.48
  6. Step 6: Final answer
    x = 76,815.85

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1.5x scale

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.