Home / 61,072.38-91,604.16-18,951.36

Finding the Fourth Proportional to 61,072.38, 91,604.16 and 18,951.36

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Solution

The fourth proportional to 61,072.38, 91,604.16 and 18,951.36 is: 28,425.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,072.38 : 91,604.16 = 18,951.36 : x
  2. Step 2: Convert to fraction form
    61,072.38/91,604.16 = 18,951.36/x
  3. Step 3: Cross multiply
    61,072.38x = 91,604.16 × 18,951.36
  4. Step 4: Simplify right side
    61,072.38x = 1,736,023,413.66
  5. Step 5: Solve for x
    x = 1,736,023,413.66/61,072.38
  6. Step 6: Final answer
    x = 28,425.67

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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.