Home / 55,485.78-76,571.55-30,334.74

Finding the Fourth Proportional to 55,485.78, 76,571.55 and 30,334.74

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Solution

The fourth proportional to 55,485.78, 76,571.55 and 30,334.74 is: 41,862.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,485.78 : 76,571.55 = 30,334.74 : x
  2. Step 2: Convert to fraction form
    55,485.78/76,571.55 = 30,334.74/x
  3. Step 3: Cross multiply
    55,485.78x = 76,571.55 × 30,334.74
  4. Step 4: Simplify right side
    55,485.78x = 2,322,778,060.65
  5. Step 5: Solve for x
    x = 2,322,778,060.65/55,485.78
  6. Step 6: Final answer
    x = 41,862.58

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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.