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Finding the Fourth Proportional to 63,135.80, 94,578.90 and 40,964.60

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Solution

The fourth proportional to 63,135.80, 94,578.90 and 40,964.60 is: 61,365.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,135.80 : 94,578.90 = 40,964.60 : x
  2. Step 2: Convert to fraction form
    63,135.80/94,578.90 = 40,964.60/x
  3. Step 3: Cross multiply
    63,135.80x = 94,578.90 × 40,964.60
  4. Step 4: Simplify right side
    63,135.80x = 3,874,386,806.94
  5. Step 5: Solve for x
    x = 3,874,386,806.94/63,135.80
  6. Step 6: Final answer
    x = 61,365.93

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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.