Home / 49,615.20-74,422.80-49,269.60

Finding the Fourth Proportional to 49,615.20, 74,422.80 and 49,269.60

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Solution

The fourth proportional to 49,615.20, 74,422.80 and 49,269.60 is: 73,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,615.20 : 74,422.80 = 49,269.60 : x
  2. Step 2: Convert to fraction form
    49,615.20/74,422.80 = 49,269.60/x
  3. Step 3: Cross multiply
    49,615.20x = 74,422.80 × 49,269.60
  4. Step 4: Simplify right side
    49,615.20x = 3,666,781,586.88
  5. Step 5: Solve for x
    x = 3,666,781,586.88/49,615.20
  6. Step 6: Final answer
    x = 73,904.40

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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.