Home / 55,563.35-76,679.21-30,412.85

Finding the Fourth Proportional to 55,563.35, 76,679.21 and 30,412.85

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Solution

The fourth proportional to 55,563.35, 76,679.21 and 30,412.85 is: 41,970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,563.35 : 76,679.21 = 30,412.85 : x
  2. Step 2: Convert to fraction form
    55,563.35/76,679.21 = 30,412.85/x
  3. Step 3: Cross multiply
    55,563.35x = 76,679.21 × 30,412.85
  4. Step 4: Simplify right side
    55,563.35x = 2,332,033,004.48
  5. Step 5: Solve for x
    x = 2,332,033,004.48/55,563.35
  6. Step 6: Final answer
    x = 41,970.71

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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.