Home / 55,662.24-76,813.44-30,511.68

Finding the Fourth Proportional to 55,662.24, 76,813.44 and 30,511.68

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Solution

The fourth proportional to 55,662.24, 76,813.44 and 30,511.68 is: 42,105.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,662.24 : 76,813.44 = 30,511.68 : x
  2. Step 2: Convert to fraction form
    55,662.24/76,813.44 = 30,511.68/x
  3. Step 3: Cross multiply
    55,662.24x = 76,813.44 × 30,511.68
  4. Step 4: Simplify right side
    55,662.24x = 2,343,707,100.98
  5. Step 5: Solve for x
    x = 2,343,707,100.98/55,662.24
  6. Step 6: Final answer
    x = 42,105.87

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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.