Home / 83,705.60-125,400.06-64,893.54

Finding the Fourth Proportional to 83,705.60, 125,400.06 and 64,893.54

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Solution

The fourth proportional to 83,705.60, 125,400.06 and 64,893.54 is: 97,217.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,705.60 : 125,400.06 = 64,893.54 : x
  2. Step 2: Convert to fraction form
    83,705.60/125,400.06 = 64,893.54/x
  3. Step 3: Cross multiply
    83,705.60x = 125,400.06 × 64,893.54
  4. Step 4: Simplify right side
    83,705.60x = 8,137,653,809.61
  5. Step 5: Solve for x
    x = 8,137,653,809.61/83,705.60
  6. Step 6: Final answer
    x = 97,217.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.