Home / 74,172.84-111,258.24-18,013.38

Finding the Fourth Proportional to 74,172.84, 111,258.24 and 18,013.38

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Solution

The fourth proportional to 74,172.84, 111,258.24 and 18,013.38 is: 27,019.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,172.84 : 111,258.24 = 18,013.38 : x
  2. Step 2: Convert to fraction form
    74,172.84/111,258.24 = 18,013.38/x
  3. Step 3: Cross multiply
    74,172.84x = 111,258.24 × 18,013.38
  4. Step 4: Simplify right side
    74,172.84x = 2,004,136,955.25
  5. Step 5: Solve for x
    x = 2,004,136,955.25/74,172.84
  6. Step 6: Final answer
    x = 27,019.82

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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.