Home / 51,435.54-71,021.31-39,479.94

Finding the Fourth Proportional to 51,435.54, 71,021.31 and 39,479.94

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Solution

The fourth proportional to 51,435.54, 71,021.31 and 39,479.94 is: 54,513.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,435.54 : 71,021.31 = 39,479.94 : x
  2. Step 2: Convert to fraction form
    51,435.54/71,021.31 = 39,479.94/x
  3. Step 3: Cross multiply
    51,435.54x = 71,021.31 × 39,479.94
  4. Step 4: Simplify right side
    51,435.54x = 2,803,917,057.52
  5. Step 5: Solve for x
    x = 2,803,917,057.52/51,435.54
  6. Step 6: Final answer
    x = 54,513.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.