Home / 65,378.19-97,982.99-31,636.28

Finding the Fourth Proportional to 65,378.19, 97,982.99 and 31,636.28

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Solution

The fourth proportional to 65,378.19, 97,982.99 and 31,636.28 is: 47,413.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,378.19 : 97,982.99 = 31,636.28 : x
  2. Step 2: Convert to fraction form
    65,378.19/97,982.99 = 31,636.28/x
  3. Step 3: Cross multiply
    65,378.19x = 97,982.99 × 31,636.28
  4. Step 4: Simplify right side
    65,378.19x = 3,099,816,658.78
  5. Step 5: Solve for x
    x = 3,099,816,658.78/65,378.19
  6. Step 6: Final answer
    x = 47,413.62

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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.