Home / 86,734.86-119,660.32-54,455.75

Finding the Fourth Proportional to 86,734.86, 119,660.32 and 54,455.75

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Solution

The fourth proportional to 86,734.86, 119,660.32 and 54,455.75 is: 75,127.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,734.86 : 119,660.32 = 54,455.75 : x
  2. Step 2: Convert to fraction form
    86,734.86/119,660.32 = 54,455.75/x
  3. Step 3: Cross multiply
    86,734.86x = 119,660.32 × 54,455.75
  4. Step 4: Simplify right side
    86,734.86x = 6,516,192,470.84
  5. Step 5: Solve for x
    x = 6,516,192,470.84/86,734.86
  6. Step 6: Final answer
    x = 75,127.72

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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.