Home / 53,034.48-79,481.12-28,069.20

Finding the Fourth Proportional to 53,034.48, 79,481.12 and 28,069.20

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Solution

The fourth proportional to 53,034.48, 79,481.12 and 28,069.20 is: 42,066.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,034.48 : 79,481.12 = 28,069.20 : x
  2. Step 2: Convert to fraction form
    53,034.48/79,481.12 = 28,069.20/x
  3. Step 3: Cross multiply
    53,034.48x = 79,481.12 × 28,069.20
  4. Step 4: Simplify right side
    53,034.48x = 2,230,971,453.50
  5. Step 5: Solve for x
    x = 2,230,971,453.50/53,034.48
  6. Step 6: Final answer
    x = 42,066.43

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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.