Home / 65,221.57-90,004.18-36,542.43

Finding the Fourth Proportional to 65,221.57, 90,004.18 and 36,542.43

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Solution

The fourth proportional to 65,221.57, 90,004.18 and 36,542.43 is: 50,427.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,221.57 : 90,004.18 = 36,542.43 : x
  2. Step 2: Convert to fraction form
    65,221.57/90,004.18 = 36,542.43/x
  3. Step 3: Cross multiply
    65,221.57x = 90,004.18 × 36,542.43
  4. Step 4: Simplify right side
    65,221.57x = 3,288,971,143.79
  5. Step 5: Solve for x
    x = 3,288,971,143.79/65,221.57
  6. Step 6: Final answer
    x = 50,427.66

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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.