Home / 74,238.36-111,357.75-18,078.46

Finding the Fourth Proportional to 74,238.36, 111,357.75 and 18,078.46

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Solution

The fourth proportional to 74,238.36, 111,357.75 and 18,078.46 is: 27,117.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,238.36 : 111,357.75 = 18,078.46 : x
  2. Step 2: Convert to fraction form
    74,238.36/111,357.75 = 18,078.46/x
  3. Step 3: Cross multiply
    74,238.36x = 111,357.75 × 18,078.46
  4. Step 4: Simplify right side
    74,238.36x = 2,013,176,072.28
  5. Step 5: Solve for x
    x = 2,013,176,072.28/74,238.36
  6. Step 6: Final answer
    x = 27,117.74

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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.