Home / 55,206.48-82,809.82-20,137.98

Finding the Fourth Proportional to 55,206.48, 82,809.82 and 20,137.98

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Solution

The fourth proportional to 55,206.48, 82,809.82 and 20,137.98 is: 30,207.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,206.48 : 82,809.82 = 20,137.98 : x
  2. Step 2: Convert to fraction form
    55,206.48/82,809.82 = 20,137.98/x
  3. Step 3: Cross multiply
    55,206.48x = 82,809.82 × 20,137.98
  4. Step 4: Simplify right side
    55,206.48x = 1,667,622,498.96
  5. Step 5: Solve for x
    x = 1,667,622,498.96/55,206.48
  6. Step 6: Final answer
    x = 30,207.01

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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.