Home / 74,709.36-112,065.30-27,936.72

Finding the Fourth Proportional to 74,709.36, 112,065.30 and 27,936.72

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Solution

The fourth proportional to 74,709.36, 112,065.30 and 27,936.72 is: 41,905.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,709.36 : 112,065.30 = 27,936.72 : x
  2. Step 2: Convert to fraction form
    74,709.36/112,065.30 = 27,936.72/x
  3. Step 3: Cross multiply
    74,709.36x = 112,065.30 × 27,936.72
  4. Step 4: Simplify right side
    74,709.36x = 3,130,736,907.82
  5. Step 5: Solve for x
    x = 3,130,736,907.82/74,709.36
  6. Step 6: Final answer
    x = 41,905.55

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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.