Home / 90,923.12-125,464.91-50,640.63

Finding the Fourth Proportional to 90,923.12, 125,464.91 and 50,640.63

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Solution

The fourth proportional to 90,923.12, 125,464.91 and 50,640.63 is: 69,879.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,923.12 : 125,464.91 = 50,640.63 : x
  2. Step 2: Convert to fraction form
    90,923.12/125,464.91 = 50,640.63/x
  3. Step 3: Cross multiply
    90,923.12x = 125,464.91 × 50,640.63
  4. Step 4: Simplify right side
    90,923.12x = 6,353,622,085.29
  5. Step 5: Solve for x
    x = 6,353,622,085.29/90,923.12
  6. Step 6: Final answer
    x = 69,879.06

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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.