Home / 48,619.13-72,940.99-13,558.78

Finding the Fourth Proportional to 48,619.13, 72,940.99 and 13,558.78

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Solution

The fourth proportional to 48,619.13, 72,940.99 and 13,558.78 is: 20,341.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,619.13 : 72,940.99 = 13,558.78 : x
  2. Step 2: Convert to fraction form
    48,619.13/72,940.99 = 13,558.78/x
  3. Step 3: Cross multiply
    48,619.13x = 72,940.99 × 13,558.78
  4. Step 4: Simplify right side
    48,619.13x = 988,990,919.09
  5. Step 5: Solve for x
    x = 988,990,919.09/48,619.13
  6. Step 6: Final answer
    x = 20,341.60

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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.