Home / 51,628-71,245.26-28,965.10

Finding the Fourth Proportional to 51,628, 71,245.26 and 28,965.10

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Solution

The fourth proportional to 51,628, 71,245.26 and 28,965.10 is: 39,971.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,628 : 71,245.26 = 28,965.10 : x
  2. Step 2: Convert to fraction form
    51,628/71,245.26 = 28,965.10/x
  3. Step 3: Cross multiply
    51,628x = 71,245.26 × 28,965.10
  4. Step 4: Simplify right side
    51,628x = 2,063,626,080.43
  5. Step 5: Solve for x
    x = 2,063,626,080.43/51,628
  6. Step 6: Final answer
    x = 39,971.06

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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.