Home / 54,136.76-81,203.31-19,075.50

Finding the Fourth Proportional to 54,136.76, 81,203.31 and 19,075.50

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Solution

The fourth proportional to 54,136.76, 81,203.31 and 19,075.50 is: 28,612.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,136.76 : 81,203.31 = 19,075.50 : x
  2. Step 2: Convert to fraction form
    54,136.76/81,203.31 = 19,075.50/x
  3. Step 3: Cross multiply
    54,136.76x = 81,203.31 × 19,075.50
  4. Step 4: Simplify right side
    54,136.76x = 1,548,993,739.91
  5. Step 5: Solve for x
    x = 1,548,993,739.91/54,136.76
  6. Step 6: Final answer
    x = 28,612.61

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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.