Home / 90,104.40-124,333.11-49,812.57

Finding the Fourth Proportional to 90,104.40, 124,333.11 and 49,812.57

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Solution

The fourth proportional to 90,104.40, 124,333.11 and 49,812.57 is: 68,735.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,104.40 : 124,333.11 = 49,812.57 : x
  2. Step 2: Convert to fraction form
    90,104.40/124,333.11 = 49,812.57/x
  3. Step 3: Cross multiply
    90,104.40x = 124,333.11 × 49,812.57
  4. Step 4: Simplify right side
    90,104.40x = 6,193,351,745.19
  5. Step 5: Solve for x
    x = 6,193,351,745.19/90,104.40
  6. Step 6: Final answer
    x = 68,735.29

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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.