Home / 55,485.75-76,572.23-30,336.87

Finding the Fourth Proportional to 55,485.75, 76,572.23 and 30,336.87

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Solution

The fourth proportional to 55,485.75, 76,572.23 and 30,336.87 is: 41,865.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,485.75 : 76,572.23 = 30,336.87 : x
  2. Step 2: Convert to fraction form
    55,485.75/76,572.23 = 30,336.87/x
  3. Step 3: Cross multiply
    55,485.75x = 76,572.23 × 30,336.87
  4. Step 4: Simplify right side
    55,485.75x = 2,322,961,635.44
  5. Step 5: Solve for x
    x = 2,322,961,635.44/55,485.75
  6. Step 6: Final answer
    x = 41,865.91

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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.