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Finding the Fourth Proportional to 65,377.86, 90,218.79 and 37,082.94

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Solution

The fourth proportional to 65,377.86, 90,218.79 and 37,082.94 is: 51,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,377.86 : 90,218.79 = 37,082.94 : x
  2. Step 2: Convert to fraction form
    65,377.86/90,218.79 = 37,082.94/x
  3. Step 3: Cross multiply
    65,377.86x = 90,218.79 × 37,082.94
  4. Step 4: Simplify right side
    65,377.86x = 3,345,577,976.44
  5. Step 5: Solve for x
    x = 3,345,577,976.44/65,377.86
  6. Step 6: Final answer
    x = 51,172.95

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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.