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Finding the Fourth Proportional to 90,003.48, 135,024.30 and 30,823.26

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Solution

The fourth proportional to 90,003.48, 135,024.30 and 30,823.26 is: 46,241.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,003.48 : 135,024.30 = 30,823.26 : x
  2. Step 2: Convert to fraction form
    90,003.48/135,024.30 = 30,823.26/x
  3. Step 3: Cross multiply
    90,003.48x = 135,024.30 × 30,823.26
  4. Step 4: Simplify right side
    90,003.48x = 4,161,889,105.22
  5. Step 5: Solve for x
    x = 4,161,889,105.22/90,003.48
  6. Step 6: Final answer
    x = 46,241.42

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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.