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Finding the Fourth Proportional to 43,990, 65,944 and 17,350.45

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Solution

The fourth proportional to 43,990, 65,944 and 17,350.45 is: 26,009.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,990 : 65,944 = 17,350.45 : x
  2. Step 2: Convert to fraction form
    43,990/65,944 = 17,350.45/x
  3. Step 3: Cross multiply
    43,990x = 65,944 × 17,350.45
  4. Step 4: Simplify right side
    43,990x = 1,144,158,074.80
  5. Step 5: Solve for x
    x = 1,144,158,074.80/43,990
  6. Step 6: Final answer
    x = 26,009.50

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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.