Home / 56,480.36-77,942.86-30,986.89

Finding the Fourth Proportional to 56,480.36, 77,942.86 and 30,986.89

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Solution

The fourth proportional to 56,480.36, 77,942.86 and 30,986.89 is: 42,761.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,480.36 : 77,942.86 = 30,986.89 : x
  2. Step 2: Convert to fraction form
    56,480.36/77,942.86 = 30,986.89/x
  3. Step 3: Cross multiply
    56,480.36x = 77,942.86 × 30,986.89
  4. Step 4: Simplify right side
    56,480.36x = 2,415,206,392.37
  5. Step 5: Solve for x
    x = 2,415,206,392.37/56,480.36
  6. Step 6: Final answer
    x = 42,761.88

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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.