Home / 53,074.90-73,245.11-30,418.18

Finding the Fourth Proportional to 53,074.90, 73,245.11 and 30,418.18

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Solution

The fourth proportional to 53,074.90, 73,245.11 and 30,418.18 is: 41,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,074.90 : 73,245.11 = 30,418.18 : x
  2. Step 2: Convert to fraction form
    53,074.90/73,245.11 = 30,418.18/x
  3. Step 3: Cross multiply
    53,074.90x = 73,245.11 × 30,418.18
  4. Step 4: Simplify right side
    53,074.90x = 2,227,982,860.01
  5. Step 5: Solve for x
    x = 2,227,982,860.01/53,074.90
  6. Step 6: Final answer
    x = 41,978.09

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1.5x scale

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.