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Finding the Fourth Proportional to 64,007.80, 95,939.70 and 30,743.80

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Solution

The fourth proportional to 64,007.80, 95,939.70 and 30,743.80 is: 46,081.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,007.80 : 95,939.70 = 30,743.80 : x
  2. Step 2: Convert to fraction form
    64,007.80/95,939.70 = 30,743.80/x
  3. Step 3: Cross multiply
    64,007.80x = 95,939.70 × 30,743.80
  4. Step 4: Simplify right side
    64,007.80x = 2,949,550,948.86
  5. Step 5: Solve for x
    x = 2,949,550,948.86/64,007.80
  6. Step 6: Final answer
    x = 46,081.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.