Home / 45,218.93-67,819.16-17,129.30

Finding the Fourth Proportional to 45,218.93, 67,819.16 and 17,129.30

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Solution

The fourth proportional to 45,218.93, 67,819.16 and 17,129.30 is: 25,690.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,218.93 : 67,819.16 = 17,129.30 : x
  2. Step 2: Convert to fraction form
    45,218.93/67,819.16 = 17,129.30/x
  3. Step 3: Cross multiply
    45,218.93x = 67,819.16 × 17,129.30
  4. Step 4: Simplify right side
    45,218.93x = 1,161,694,949.76
  5. Step 5: Solve for x
    x = 1,161,694,949.76/45,218.93
  6. Step 6: Final answer
    x = 25,690.45

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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.