Home / 55,529.30-76,630.43-30,378.80

Finding the Fourth Proportional to 55,529.30, 76,630.43 and 30,378.80

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Solution

The fourth proportional to 55,529.30, 76,630.43 and 30,378.80 is: 41,922.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,529.30 : 76,630.43 = 30,378.80 : x
  2. Step 2: Convert to fraction form
    55,529.30/76,630.43 = 30,378.80/x
  3. Step 3: Cross multiply
    55,529.30x = 76,630.43 × 30,378.80
  4. Step 4: Simplify right side
    55,529.30x = 2,327,940,257.92
  5. Step 5: Solve for x
    x = 2,327,940,257.92/55,529.30
  6. Step 6: Final answer
    x = 41,922.74

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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.