Home / 90,150.57-124,406.55-49,865.09

Finding the Fourth Proportional to 90,150.57, 124,406.55 and 49,865.09

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Solution

The fourth proportional to 90,150.57, 124,406.55 and 49,865.09 is: 68,813.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,150.57 : 124,406.55 = 49,865.09 : x
  2. Step 2: Convert to fraction form
    90,150.57/124,406.55 = 49,865.09/x
  3. Step 3: Cross multiply
    90,150.57x = 124,406.55 × 49,865.09
  4. Step 4: Simplify right side
    90,150.57x = 6,203,543,190.31
  5. Step 5: Solve for x
    x = 6,203,543,190.31/90,150.57
  6. Step 6: Final answer
    x = 68,813.13

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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.