Home / 55,528.88-76,629.92-30,378.38

Finding the Fourth Proportional to 55,528.88, 76,629.92 and 30,378.38

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Solution

The fourth proportional to 55,528.88, 76,629.92 and 30,378.38 is: 41,922.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,528.88 : 76,629.92 = 30,378.38 : x
  2. Step 2: Convert to fraction form
    55,528.88/76,629.92 = 30,378.38/x
  3. Step 3: Cross multiply
    55,528.88x = 76,629.92 × 30,378.38
  4. Step 4: Simplify right side
    55,528.88x = 2,327,892,294.09
  5. Step 5: Solve for x
    x = 2,327,892,294.09/55,528.88
  6. Step 6: Final answer
    x = 41,922.19

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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.