Home / 53,299.51-79,913.72-21,257.26

Finding the Fourth Proportional to 53,299.51, 79,913.72 and 21,257.26

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Solution

The fourth proportional to 53,299.51, 79,913.72 and 21,257.26 is: 31,871.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,299.51 : 79,913.72 = 21,257.26 : x
  2. Step 2: Convert to fraction form
    53,299.51/79,913.72 = 21,257.26/x
  3. Step 3: Cross multiply
    53,299.51x = 79,913.72 × 21,257.26
  4. Step 4: Simplify right side
    53,299.51x = 1,698,746,576.97
  5. Step 5: Solve for x
    x = 1,698,746,576.97/53,299.51
  6. Step 6: Final answer
    x = 31,871.71

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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.