Home / 50,979.38-76,485.31-21,389.27

Finding the Fourth Proportional to 50,979.38, 76,485.31 and 21,389.27

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Solution

The fourth proportional to 50,979.38, 76,485.31 and 21,389.27 is: 32,090.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,979.38 : 76,485.31 = 21,389.27 : x
  2. Step 2: Convert to fraction form
    50,979.38/76,485.31 = 21,389.27/x
  3. Step 3: Cross multiply
    50,979.38x = 76,485.31 × 21,389.27
  4. Step 4: Simplify right side
    50,979.38x = 1,635,964,631.04
  5. Step 5: Solve for x
    x = 1,635,964,631.04/50,979.38
  6. Step 6: Final answer
    x = 32,090.72

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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.