Home / 83,405.85-115,095.51-49,417.47

Finding the Fourth Proportional to 83,405.85, 115,095.51 and 49,417.47

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Solution

The fourth proportional to 83,405.85, 115,095.51 and 49,417.47 is: 68,193.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,405.85 : 115,095.51 = 49,417.47 : x
  2. Step 2: Convert to fraction form
    83,405.85/115,095.51 = 49,417.47/x
  3. Step 3: Cross multiply
    83,405.85x = 115,095.51 × 49,417.47
  4. Step 4: Simplify right side
    83,405.85x = 5,687,728,912.56
  5. Step 5: Solve for x
    x = 5,687,728,912.56/83,405.85
  6. Step 6: Final answer
    x = 68,193.41

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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.