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Finding the Fourth Proportional to 65,943.46, 91,002.17 and 35,728.63

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Solution

The fourth proportional to 65,943.46, 91,002.17 and 35,728.63 is: 49,305.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,943.46 : 91,002.17 = 35,728.63 : x
  2. Step 2: Convert to fraction form
    65,943.46/91,002.17 = 35,728.63/x
  3. Step 3: Cross multiply
    65,943.46x = 91,002.17 × 35,728.63
  4. Step 4: Simplify right side
    65,943.46x = 3,251,382,861.13
  5. Step 5: Solve for x
    x = 3,251,382,861.13/65,943.46
  6. Step 6: Final answer
    x = 49,305.62

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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.