Home / 49,764.40-74,646.60-28,769.20

Finding the Fourth Proportional to 49,764.40, 74,646.60 and 28,769.20

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Solution

The fourth proportional to 49,764.40, 74,646.60 and 28,769.20 is: 43,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,764.40 : 74,646.60 = 28,769.20 : x
  2. Step 2: Convert to fraction form
    49,764.40/74,646.60 = 28,769.20/x
  3. Step 3: Cross multiply
    49,764.40x = 74,646.60 × 28,769.20
  4. Step 4: Simplify right side
    49,764.40x = 2,147,522,964.72
  5. Step 5: Solve for x
    x = 2,147,522,964.72/49,764.40
  6. Step 6: Final answer
    x = 43,153.80

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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.