Home / 48,618.75-72,940.43-13,558.41

Finding the Fourth Proportional to 48,618.75, 72,940.43 and 13,558.41

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Solution

The fourth proportional to 48,618.75, 72,940.43 and 13,558.41 is: 20,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,618.75 : 72,940.43 = 13,558.41 : x
  2. Step 2: Convert to fraction form
    48,618.75/72,940.43 = 13,558.41/x
  3. Step 3: Cross multiply
    48,618.75x = 72,940.43 × 13,558.41
  4. Step 4: Simplify right side
    48,618.75x = 988,956,289.41
  5. Step 5: Solve for x
    x = 988,956,289.41/48,618.75
  6. Step 6: Final answer
    x = 20,341.05

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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.