Home / 89,933.90-124,109.79-49,647.69

Finding the Fourth Proportional to 89,933.90, 124,109.79 and 49,647.69

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Solution

The fourth proportional to 89,933.90, 124,109.79 and 49,647.69 is: 68,514.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,933.90 : 124,109.79 = 49,647.69 : x
  2. Step 2: Convert to fraction form
    89,933.90/124,109.79 = 49,647.69/x
  3. Step 3: Cross multiply
    89,933.90x = 124,109.79 × 49,647.69
  4. Step 4: Simplify right side
    89,933.90x = 6,161,763,759.34
  5. Step 5: Solve for x
    x = 6,161,763,759.34/89,933.90
  6. Step 6: Final answer
    x = 68,514.36

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1.5x scale

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.