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Finding the Fourth Proportional to 64,951.70, 89,633.60 and 35,143.70

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Solution

The fourth proportional to 64,951.70, 89,633.60 and 35,143.70 is: 48,498.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,951.70 : 89,633.60 = 35,143.70 : x
  2. Step 2: Convert to fraction form
    64,951.70/89,633.60 = 35,143.70/x
  3. Step 3: Cross multiply
    64,951.70x = 89,633.60 × 35,143.70
  4. Step 4: Simplify right side
    64,951.70x = 3,150,055,724.43
  5. Step 5: Solve for x
    x = 3,150,055,724.43/64,951.70
  6. Step 6: Final answer
    x = 48,498.44

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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.