Home / 54,739.40-82,011.90-51,240.20

Finding the Fourth Proportional to 54,739.40, 82,011.90 and 51,240.20

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Solution

The fourth proportional to 54,739.40, 82,011.90 and 51,240.20 is: 76,769.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,739.40 : 82,011.90 = 51,240.20 : x
  2. Step 2: Convert to fraction form
    54,739.40/82,011.90 = 51,240.20/x
  3. Step 3: Cross multiply
    54,739.40x = 82,011.90 × 51,240.20
  4. Step 4: Simplify right side
    54,739.40x = 4,202,306,158.38
  5. Step 5: Solve for x
    x = 4,202,306,158.38/54,739.40
  6. Step 6: Final answer
    x = 76,769.31

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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.