Home / 65,078.89-89,816.75-36,784.33

Finding the Fourth Proportional to 65,078.89, 89,816.75 and 36,784.33

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Solution

The fourth proportional to 65,078.89, 89,816.75 and 36,784.33 is: 50,766.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,078.89 : 89,816.75 = 36,784.33 : x
  2. Step 2: Convert to fraction form
    65,078.89/89,816.75 = 36,784.33/x
  3. Step 3: Cross multiply
    65,078.89x = 89,816.75 × 36,784.33
  4. Step 4: Simplify right side
    65,078.89x = 3,303,848,787.61
  5. Step 5: Solve for x
    x = 3,303,848,787.61/65,078.89
  6. Step 6: Final answer
    x = 50,766.83

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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.