Home / 81,865.68-122,827.56-46,834.80

Finding the Fourth Proportional to 81,865.68, 122,827.56 and 46,834.80

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Solution

The fourth proportional to 81,865.68, 122,827.56 and 46,834.80 is: 70,268.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,865.68 : 122,827.56 = 46,834.80 : x
  2. Step 2: Convert to fraction form
    81,865.68/122,827.56 = 46,834.80/x
  3. Step 3: Cross multiply
    81,865.68x = 122,827.56 × 46,834.80
  4. Step 4: Simplify right side
    81,865.68x = 5,752,604,207.09
  5. Step 5: Solve for x
    x = 5,752,604,207.09/81,865.68
  6. Step 6: Final answer
    x = 70,268.81

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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.