Home / 83,648.77-115,427.62-49,651.45

Finding the Fourth Proportional to 83,648.77, 115,427.62 and 49,651.45

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Solution

The fourth proportional to 83,648.77, 115,427.62 and 49,651.45 is: 68,514.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,648.77 : 115,427.62 = 49,651.45 : x
  2. Step 2: Convert to fraction form
    83,648.77/115,427.62 = 49,651.45/x
  3. Step 3: Cross multiply
    83,648.77x = 115,427.62 × 49,651.45
  4. Step 4: Simplify right side
    83,648.77x = 5,731,148,703.05
  5. Step 5: Solve for x
    x = 5,731,148,703.05/83,648.77
  6. Step 6: Final answer
    x = 68,514.44

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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.