Home / 54,136.40-81,204.60-30,808.40

Finding the Fourth Proportional to 54,136.40, 81,204.60 and 30,808.40

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Solution

The fourth proportional to 54,136.40, 81,204.60 and 30,808.40 is: 46,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,136.40 : 81,204.60 = 30,808.40 : x
  2. Step 2: Convert to fraction form
    54,136.40/81,204.60 = 30,808.40/x
  3. Step 3: Cross multiply
    54,136.40x = 81,204.60 × 30,808.40
  4. Step 4: Simplify right side
    54,136.40x = 2,501,783,798.64
  5. Step 5: Solve for x
    x = 2,501,783,798.64/54,136.40
  6. Step 6: Final answer
    x = 46,212.60

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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.