Home / 83,717.20-125,536.20-48,667.60

Finding the Fourth Proportional to 83,717.20, 125,536.20 and 48,667.60

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Solution

The fourth proportional to 83,717.20, 125,536.20 and 48,667.60 is: 72,978.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,717.20 : 125,536.20 = 48,667.60 : x
  2. Step 2: Convert to fraction form
    83,717.20/125,536.20 = 48,667.60/x
  3. Step 3: Cross multiply
    83,717.20x = 125,536.20 × 48,667.60
  4. Step 4: Simplify right side
    83,717.20x = 6,109,545,567.12
  5. Step 5: Solve for x
    x = 6,109,545,567.12/83,717.20
  6. Step 6: Final answer
    x = 72,978.38

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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.