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Finding the Fourth Proportional to 90,465.75, 124,843.34 and 50,180.20

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Solution

The fourth proportional to 90,465.75, 124,843.34 and 50,180.20 is: 69,249.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,465.75 : 124,843.34 = 50,180.20 : x
  2. Step 2: Convert to fraction form
    90,465.75/124,843.34 = 50,180.20/x
  3. Step 3: Cross multiply
    90,465.75x = 124,843.34 × 50,180.20
  4. Step 4: Simplify right side
    90,465.75x = 6,264,663,769.87
  5. Step 5: Solve for x
    x = 6,264,663,769.87/90,465.75
  6. Step 6: Final answer
    x = 69,249.01

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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.