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Finding the Fourth Proportional to 90,480.99, 135,795.26 and 46,120.39

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Solution

The fourth proportional to 90,480.99, 135,795.26 and 46,120.39 is: 69,218.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,480.99 : 135,795.26 = 46,120.39 : x
  2. Step 2: Convert to fraction form
    90,480.99/135,795.26 = 46,120.39/x
  3. Step 3: Cross multiply
    90,480.99x = 135,795.26 × 46,120.39
  4. Step 4: Simplify right side
    90,480.99x = 6,262,930,351.35
  5. Step 5: Solve for x
    x = 6,262,930,351.35/90,480.99
  6. Step 6: Final answer
    x = 69,218.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.