Home / 54,149.59-81,219-16,699.51

Finding the Fourth Proportional to 54,149.59, 81,219 and 16,699.51

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Solution

The fourth proportional to 54,149.59, 81,219 and 16,699.51 is: 25,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,149.59 : 81,219 = 16,699.51 : x
  2. Step 2: Convert to fraction form
    54,149.59/81,219 = 16,699.51/x
  3. Step 3: Cross multiply
    54,149.59x = 81,219 × 16,699.51
  4. Step 4: Simplify right side
    54,149.59x = 1,356,317,502.69
  5. Step 5: Solve for x
    x = 1,356,317,502.69/54,149.59
  6. Step 6: Final answer
    x = 25,047.60

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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.