Home / 51,486.14-71,034.36-28,821.80

Finding the Fourth Proportional to 51,486.14, 71,034.36 and 28,821.80

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Solution

The fourth proportional to 51,486.14, 71,034.36 and 28,821.80 is: 39,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,486.14 : 71,034.36 = 28,821.80 : x
  2. Step 2: Convert to fraction form
    51,486.14/71,034.36 = 28,821.80/x
  3. Step 3: Cross multiply
    51,486.14x = 71,034.36 × 28,821.80
  4. Step 4: Simplify right side
    51,486.14x = 2,047,338,117.05
  5. Step 5: Solve for x
    x = 2,047,338,117.05/51,486.14
  6. Step 6: Final answer
    x = 39,764.84

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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.