Home / 45,907.60-68,764.20-40,982.80

Finding the Fourth Proportional to 45,907.60, 68,764.20 and 40,982.80

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Solution

The fourth proportional to 45,907.60, 68,764.20 and 40,982.80 is: 61,387.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,907.60 : 68,764.20 = 40,982.80 : x
  2. Step 2: Convert to fraction form
    45,907.60/68,764.20 = 40,982.80/x
  3. Step 3: Cross multiply
    45,907.60x = 68,764.20 × 40,982.80
  4. Step 4: Simplify right side
    45,907.60x = 2,818,149,455.76
  5. Step 5: Solve for x
    x = 2,818,149,455.76/45,907.60
  6. Step 6: Final answer
    x = 61,387.43

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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.