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Finding the Fourth Proportional to 65,080.53, 89,809.90 and 36,785.61

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Solution

The fourth proportional to 65,080.53, 89,809.90 and 36,785.61 is: 50,763.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,080.53 : 89,809.90 = 36,785.61 : x
  2. Step 2: Convert to fraction form
    65,080.53/89,809.90 = 36,785.61/x
  3. Step 3: Cross multiply
    65,080.53x = 89,809.90 × 36,785.61
  4. Step 4: Simplify right side
    65,080.53x = 3,303,711,863.57
  5. Step 5: Solve for x
    x = 3,303,711,863.57/65,080.53
  6. Step 6: Final answer
    x = 50,763.44

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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.