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Finding the Fourth Proportional to 63,668.54, 95,470 and 28,578.12

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Solution

The fourth proportional to 63,668.54, 95,470 and 28,578.12 is: 42,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,668.54 : 95,470 = 28,578.12 : x
  2. Step 2: Convert to fraction form
    63,668.54/95,470 = 28,578.12/x
  3. Step 3: Cross multiply
    63,668.54x = 95,470 × 28,578.12
  4. Step 4: Simplify right side
    63,668.54x = 2,728,353,116.40
  5. Step 5: Solve for x
    x = 2,728,353,116.40/63,668.54
  6. Step 6: Final answer
    x = 42,852.45

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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.