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Finding the Fourth Proportional to 65,274.75, 90,082.80 and 36,989.55

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Solution

The fourth proportional to 65,274.75, 90,082.80 and 36,989.55 is: 51,047.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,274.75 : 90,082.80 = 36,989.55 : x
  2. Step 2: Convert to fraction form
    65,274.75/90,082.80 = 36,989.55/x
  3. Step 3: Cross multiply
    65,274.75x = 90,082.80 × 36,989.55
  4. Step 4: Simplify right side
    65,274.75x = 3,332,122,234.74
  5. Step 5: Solve for x
    x = 3,332,122,234.74/65,274.75
  6. Step 6: Final answer
    x = 51,047.64

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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.