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Finding the Fourth Proportional to 64,633.92, 96,950.89 and 20,260.91

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Solution

The fourth proportional to 64,633.92, 96,950.89 and 20,260.91 is: 30,391.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,633.92 : 96,950.89 = 20,260.91 : x
  2. Step 2: Convert to fraction form
    64,633.92/96,950.89 = 20,260.91/x
  3. Step 3: Cross multiply
    64,633.92x = 96,950.89 × 20,260.91
  4. Step 4: Simplify right side
    64,633.92x = 1,964,313,256.71
  5. Step 5: Solve for x
    x = 1,964,313,256.71/64,633.92
  6. Step 6: Final answer
    x = 30,391.37

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1.5x scale

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.