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Finding the Fourth Proportional to 64,930, 89,606.08 and 36,635.68

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Solution

The fourth proportional to 64,930, 89,606.08 and 36,635.68 is: 50,558.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,930 : 89,606.08 = 36,635.68 : x
  2. Step 2: Convert to fraction form
    64,930/89,606.08 = 36,635.68/x
  3. Step 3: Cross multiply
    64,930x = 89,606.08 × 36,635.68
  4. Step 4: Simplify right side
    64,930x = 3,282,779,672.93
  5. Step 5: Solve for x
    x = 3,282,779,672.93/64,930
  6. Step 6: Final answer
    x = 50,558.75

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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.