Home / 83,324.09-124,840.34-69,373.77

Finding the Fourth Proportional to 83,324.09, 124,840.34 and 69,373.77

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Solution

The fourth proportional to 83,324.09, 124,840.34 and 69,373.77 is: 103,939.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,324.09 : 124,840.34 = 69,373.77 : x
  2. Step 2: Convert to fraction form
    83,324.09/124,840.34 = 69,373.77/x
  3. Step 3: Cross multiply
    83,324.09x = 124,840.34 × 69,373.77
  4. Step 4: Simplify right side
    83,324.09x = 8,660,644,479.01
  5. Step 5: Solve for x
    x = 8,660,644,479.01/83,324.09
  6. Step 6: Final answer
    x = 103,939.26

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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.