Home / 57,920.04-86,830.68-55,164.36

Finding the Fourth Proportional to 57,920.04, 86,830.68 and 55,164.36

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Solution

The fourth proportional to 57,920.04, 86,830.68 and 55,164.36 is: 82,699.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,920.04 : 86,830.68 = 55,164.36 : x
  2. Step 2: Convert to fraction form
    57,920.04/86,830.68 = 55,164.36/x
  3. Step 3: Cross multiply
    57,920.04x = 86,830.68 × 55,164.36
  4. Step 4: Simplify right side
    57,920.04x = 4,789,958,890.56
  5. Step 5: Solve for x
    x = 4,789,958,890.56/57,920.04
  6. Step 6: Final answer
    x = 82,699.51

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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.