Home / 90,180.75-124,450.34-49,344.09

Finding the Fourth Proportional to 90,180.75, 124,450.34 and 49,344.09

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Solution

The fourth proportional to 90,180.75, 124,450.34 and 49,344.09 is: 68,095.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,180.75 : 124,450.34 = 49,344.09 : x
  2. Step 2: Convert to fraction form
    90,180.75/124,450.34 = 49,344.09/x
  3. Step 3: Cross multiply
    90,180.75x = 124,450.34 × 49,344.09
  4. Step 4: Simplify right side
    90,180.75x = 6,140,888,777.49
  5. Step 5: Solve for x
    x = 6,140,888,777.49/90,180.75
  6. Step 6: Final answer
    x = 68,095.34

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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.