Home / 54,259.89-81,020.48-47,881.54

Finding the Fourth Proportional to 54,259.89, 81,020.48 and 47,881.54

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Solution

The fourth proportional to 54,259.89, 81,020.48 and 47,881.54 is: 71,496.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,259.89 : 81,020.48 = 47,881.54 : x
  2. Step 2: Convert to fraction form
    54,259.89/81,020.48 = 47,881.54/x
  3. Step 3: Cross multiply
    54,259.89x = 81,020.48 × 47,881.54
  4. Step 4: Simplify right side
    54,259.89x = 3,879,385,353.94
  5. Step 5: Solve for x
    x = 3,879,385,353.94/54,259.89
  6. Step 6: Final answer
    x = 71,496.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.