Home / 55,390.56-76,440.42-30,240.60

Finding the Fourth Proportional to 55,390.56, 76,440.42 and 30,240.60

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Solution

The fourth proportional to 55,390.56, 76,440.42 and 30,240.60 is: 41,732.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,390.56 : 76,440.42 = 30,240.60 : x
  2. Step 2: Convert to fraction form
    55,390.56/76,440.42 = 30,240.60/x
  3. Step 3: Cross multiply
    55,390.56x = 76,440.42 × 30,240.60
  4. Step 4: Simplify right side
    55,390.56x = 2,311,604,165.05
  5. Step 5: Solve for x
    x = 2,311,604,165.05/55,390.56
  6. Step 6: Final answer
    x = 41,732.82

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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.