Home / 83,771.16-125,053.59-71,795.81

Finding the Fourth Proportional to 83,771.16, 125,053.59 and 71,795.81

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Solution

The fourth proportional to 83,771.16, 125,053.59 and 71,795.81 is: 107,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,771.16 : 125,053.59 = 71,795.81 : x
  2. Step 2: Convert to fraction form
    83,771.16/125,053.59 = 71,795.81/x
  3. Step 3: Cross multiply
    83,771.16x = 125,053.59 × 71,795.81
  4. Step 4: Simplify right side
    83,771.16x = 8,978,324,369.33
  5. Step 5: Solve for x
    x = 8,978,324,369.33/83,771.16
  6. Step 6: Final answer
    x = 107,176.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.