Home / 55,912.24-77,157.12-30,761.60

Finding the Fourth Proportional to 55,912.24, 77,157.12 and 30,761.60

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Solution

The fourth proportional to 55,912.24, 77,157.12 and 30,761.60 is: 42,450.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,912.24 : 77,157.12 = 30,761.60 : x
  2. Step 2: Convert to fraction form
    55,912.24/77,157.12 = 30,761.60/x
  3. Step 3: Cross multiply
    55,912.24x = 77,157.12 × 30,761.60
  4. Step 4: Simplify right side
    55,912.24x = 2,373,476,462.59
  5. Step 5: Solve for x
    x = 2,373,476,462.59/55,912.24
  6. Step 6: Final answer
    x = 42,450.03

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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.