Home / 48,466.75-72,718.66-18,905.20

Finding the Fourth Proportional to 48,466.75, 72,718.66 and 18,905.20

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Solution

The fourth proportional to 48,466.75, 72,718.66 and 18,905.20 is: 28,365.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,466.75 : 72,718.66 = 18,905.20 : x
  2. Step 2: Convert to fraction form
    48,466.75/72,718.66 = 18,905.20/x
  3. Step 3: Cross multiply
    48,466.75x = 72,718.66 × 18,905.20
  4. Step 4: Simplify right side
    48,466.75x = 1,374,760,811.03
  5. Step 5: Solve for x
    x = 1,374,760,811.03/48,466.75
  6. Step 6: Final answer
    x = 28,365.03

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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.