Home / 98,380.35-135,785.05-62,563.43

Finding the Fourth Proportional to 98,380.35, 135,785.05 and 62,563.43

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Solution

The fourth proportional to 98,380.35, 135,785.05 and 62,563.43 is: 86,350.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,380.35 : 135,785.05 = 62,563.43 : x
  2. Step 2: Convert to fraction form
    98,380.35/135,785.05 = 62,563.43/x
  3. Step 3: Cross multiply
    98,380.35x = 135,785.05 × 62,563.43
  4. Step 4: Simplify right side
    98,380.35x = 8,495,178,653.78
  5. Step 5: Solve for x
    x = 8,495,178,653.78/98,380.35
  6. Step 6: Final answer
    x = 86,350.36

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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.