Home / 83,786.09-115,617.93-49,325.35

Finding the Fourth Proportional to 83,786.09, 115,617.93 and 49,325.35

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Solution

The fourth proportional to 83,786.09, 115,617.93 and 49,325.35 is: 68,064.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,786.09 : 115,617.93 = 49,325.35 : x
  2. Step 2: Convert to fraction form
    83,786.09/115,617.93 = 49,325.35/x
  3. Step 3: Cross multiply
    83,786.09x = 115,617.93 × 49,325.35
  4. Step 4: Simplify right side
    83,786.09x = 5,702,894,574.48
  5. Step 5: Solve for x
    x = 5,702,894,574.48/83,786.09
  6. Step 6: Final answer
    x = 68,064.94

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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.