Home / 54,518.86-81,789.27-19,457.60

Finding the Fourth Proportional to 54,518.86, 81,789.27 and 19,457.60

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Solution

The fourth proportional to 54,518.86, 81,789.27 and 19,457.60 is: 29,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,518.86 : 81,789.27 = 19,457.60 : x
  2. Step 2: Convert to fraction form
    54,518.86/81,789.27 = 19,457.60/x
  3. Step 3: Cross multiply
    54,518.86x = 81,789.27 × 19,457.60
  4. Step 4: Simplify right side
    54,518.86x = 1,591,422,899.95
  5. Step 5: Solve for x
    x = 1,591,422,899.95/54,518.86
  6. Step 6: Final answer
    x = 29,190.32

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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.