Home / 55,340.25-76,369.47-30,189.75

Finding the Fourth Proportional to 55,340.25, 76,369.47 and 30,189.75

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Solution

The fourth proportional to 55,340.25, 76,369.47 and 30,189.75 is: 41,661.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,340.25 : 76,369.47 = 30,189.75 : x
  2. Step 2: Convert to fraction form
    55,340.25/76,369.47 = 30,189.75/x
  3. Step 3: Cross multiply
    55,340.25x = 76,369.47 × 30,189.75
  4. Step 4: Simplify right side
    55,340.25x = 2,305,575,206.93
  5. Step 5: Solve for x
    x = 2,305,575,206.93/55,340.25
  6. Step 6: Final answer
    x = 41,661.81

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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.