Home / 65,439.09-90,310.41-36,370.94

Finding the Fourth Proportional to 65,439.09, 90,310.41 and 36,370.94

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Solution

The fourth proportional to 65,439.09, 90,310.41 and 36,370.94 is: 50,194.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,439.09 : 90,310.41 = 36,370.94 : x
  2. Step 2: Convert to fraction form
    65,439.09/90,310.41 = 36,370.94/x
  3. Step 3: Cross multiply
    65,439.09x = 90,310.41 × 36,370.94
  4. Step 4: Simplify right side
    65,439.09x = 3,284,674,051.93
  5. Step 5: Solve for x
    x = 3,284,674,051.93/65,439.09
  6. Step 6: Final answer
    x = 50,194.37

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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.