Home / 81,984.97-113,188.46-53,739.86

Finding the Fourth Proportional to 81,984.97, 113,188.46 and 53,739.86

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Solution

The fourth proportional to 81,984.97, 113,188.46 and 53,739.86 is: 74,193.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,984.97 : 113,188.46 = 53,739.86 : x
  2. Step 2: Convert to fraction form
    81,984.97/113,188.46 = 53,739.86/x
  3. Step 3: Cross multiply
    81,984.97x = 113,188.46 × 53,739.86
  4. Step 4: Simplify right side
    81,984.97x = 6,082,731,994.02
  5. Step 5: Solve for x
    x = 6,082,731,994.02/81,984.97
  6. Step 6: Final answer
    x = 74,193.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.