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Finding the Fourth Proportional to 53,118, 79,680.65 and 17,579.25

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Solution

The fourth proportional to 53,118, 79,680.65 and 17,579.25 is: 26,370.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,118 : 79,680.65 = 17,579.25 : x
  2. Step 2: Convert to fraction form
    53,118/79,680.65 = 17,579.25/x
  3. Step 3: Cross multiply
    53,118x = 79,680.65 × 17,579.25
  4. Step 4: Simplify right side
    53,118x = 1,400,725,978.62
  5. Step 5: Solve for x
    x = 1,400,725,978.62/53,118
  6. Step 6: Final answer
    x = 26,370.08

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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.