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Finding the Fourth Proportional to 98,239.44, 135,560.52 and 55,789.68

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Solution

The fourth proportional to 98,239.44, 135,560.52 and 55,789.68 is: 76,984.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,239.44 : 135,560.52 = 55,789.68 : x
  2. Step 2: Convert to fraction form
    98,239.44/135,560.52 = 55,789.68/x
  3. Step 3: Cross multiply
    98,239.44x = 135,560.52 × 55,789.68
  4. Step 4: Simplify right side
    98,239.44x = 7,562,878,031.43
  5. Step 5: Solve for x
    x = 7,562,878,031.43/98,239.44
  6. Step 6: Final answer
    x = 76,984.13

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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.