Home / 55,629.89-76,768.76-30,135.68

Finding the Fourth Proportional to 55,629.89, 76,768.76 and 30,135.68

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Solution

The fourth proportional to 55,629.89, 76,768.76 and 30,135.68 is: 41,586.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,629.89 : 76,768.76 = 30,135.68 : x
  2. Step 2: Convert to fraction form
    55,629.89/76,768.76 = 30,135.68/x
  3. Step 3: Cross multiply
    55,629.89x = 76,768.76 × 30,135.68
  4. Step 4: Simplify right side
    55,629.89x = 2,313,478,634.68
  5. Step 5: Solve for x
    x = 2,313,478,634.68/55,629.89
  6. Step 6: Final answer
    x = 41,586.97

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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.