Home / 57,879.04-86,796.48-20,432.14

Finding the Fourth Proportional to 57,879.04, 86,796.48 and 20,432.14

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Solution

The fourth proportional to 57,879.04, 86,796.48 and 20,432.14 is: 30,640.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,879.04 : 86,796.48 = 20,432.14 : x
  2. Step 2: Convert to fraction form
    57,879.04/86,796.48 = 20,432.14/x
  3. Step 3: Cross multiply
    57,879.04x = 86,796.48 × 20,432.14
  4. Step 4: Simplify right side
    57,879.04x = 1,773,437,830.87
  5. Step 5: Solve for x
    x = 1,773,437,830.87/57,879.04
  6. Step 6: Final answer
    x = 30,640.42

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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.