Home / 67,293.60-100,829.28-40,918.56

Finding the Fourth Proportional to 67,293.60, 100,829.28 and 40,918.56

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Solution

The fourth proportional to 67,293.60, 100,829.28 and 40,918.56 is: 61,310.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,293.60 : 100,829.28 = 40,918.56 : x
  2. Step 2: Convert to fraction form
    67,293.60/100,829.28 = 40,918.56/x
  3. Step 3: Cross multiply
    67,293.60x = 100,829.28 × 40,918.56
  4. Step 4: Simplify right side
    67,293.60x = 4,125,788,943.44
  5. Step 5: Solve for x
    x = 4,125,788,943.44/67,293.60
  6. Step 6: Final answer
    x = 61,310.27

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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.