Home / 74,471.58-111,786.94-30,127.32

Finding the Fourth Proportional to 74,471.58, 111,786.94 and 30,127.32

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Solution

The fourth proportional to 74,471.58, 111,786.94 and 30,127.32 is: 45,223.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,471.58 : 111,786.94 = 30,127.32 : x
  2. Step 2: Convert to fraction form
    74,471.58/111,786.94 = 30,127.32/x
  3. Step 3: Cross multiply
    74,471.58x = 111,786.94 × 30,127.32
  4. Step 4: Simplify right side
    74,471.58x = 3,367,840,913.20
  5. Step 5: Solve for x
    x = 3,367,840,913.20/74,471.58
  6. Step 6: Final answer
    x = 45,223.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.