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Finding the Fourth Proportional to 64,494.38, 96,690.66 and 40,751.89

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Solution

The fourth proportional to 64,494.38, 96,690.66 and 40,751.89 is: 61,095.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,494.38 : 96,690.66 = 40,751.89 : x
  2. Step 2: Convert to fraction form
    64,494.38/96,690.66 = 40,751.89/x
  3. Step 3: Cross multiply
    64,494.38x = 96,690.66 × 40,751.89
  4. Step 4: Simplify right side
    64,494.38x = 3,940,327,140.35
  5. Step 5: Solve for x
    x = 3,940,327,140.35/64,494.38
  6. Step 6: Final answer
    x = 61,095.67

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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.