Home / 83,606.43-115,339.21-49,616.35

Finding the Fourth Proportional to 83,606.43, 115,339.21 and 49,616.35

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Solution

The fourth proportional to 83,606.43, 115,339.21 and 49,616.35 is: 68,448.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,606.43 : 115,339.21 = 49,616.35 : x
  2. Step 2: Convert to fraction form
    83,606.43/115,339.21 = 49,616.35/x
  3. Step 3: Cross multiply
    83,606.43x = 115,339.21 × 49,616.35
  4. Step 4: Simplify right side
    83,606.43x = 5,722,710,848.48
  5. Step 5: Solve for x
    x = 5,722,710,848.48/83,606.43
  6. Step 6: Final answer
    x = 68,448.21

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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.