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Finding the Third Proportional to 53,235 and 79,389

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Solution

The third proportional to 53,235 and 79,389 is: 118,392.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,235 : 79,389 = 79,389 : x
  2. Step 2: Convert to fraction form
    53,235/79,389 = 79,389/x
  3. Step 3: Cross multiply
    53,235x = 79,389 × 79,389
  4. Step 4: Simplify right side
    53,235x = 6,302,613,321
  5. Step 5: Solve for x
    x = 6,302,613,321/53,235
  6. Step 6: Final answer
    x = 118,392.29

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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.