Home / 54,136.73-81,209.63-14,155.64

Finding the Fourth Proportional to 54,136.73, 81,209.63 and 14,155.64

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Solution

The fourth proportional to 54,136.73, 81,209.63 and 14,155.64 is: 21,234.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,136.73 : 81,209.63 = 14,155.64 : x
  2. Step 2: Convert to fraction form
    54,136.73/81,209.63 = 14,155.64/x
  3. Step 3: Cross multiply
    54,136.73x = 81,209.63 × 14,155.64
  4. Step 4: Simplify right side
    54,136.73x = 1,149,573,809.99
  5. Step 5: Solve for x
    x = 1,149,573,809.99/54,136.73
  6. Step 6: Final answer
    x = 21,234.64

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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.