Home / 90,183.40-135,241.98-31,002.28

Finding the Fourth Proportional to 90,183.40, 135,241.98 and 31,002.28

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Solution

The fourth proportional to 90,183.40, 135,241.98 and 31,002.28 is: 46,492.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,183.40 : 135,241.98 = 31,002.28 : x
  2. Step 2: Convert to fraction form
    90,183.40/135,241.98 = 31,002.28/x
  3. Step 3: Cross multiply
    90,183.40x = 135,241.98 × 31,002.28
  4. Step 4: Simplify right side
    90,183.40x = 4,192,809,731.71
  5. Step 5: Solve for x
    x = 4,192,809,731.71/90,183.40
  6. Step 6: Final answer
    x = 46,492.03

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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.