Home / 74,658.33-111,986.11-18,498.57

Finding the Fourth Proportional to 74,658.33, 111,986.11 and 18,498.57

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Solution

The fourth proportional to 74,658.33, 111,986.11 and 18,498.57 is: 27,747.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,658.33 : 111,986.11 = 18,498.57 : x
  2. Step 2: Convert to fraction form
    74,658.33/111,986.11 = 18,498.57/x
  3. Step 3: Cross multiply
    74,658.33x = 111,986.11 × 18,498.57
  4. Step 4: Simplify right side
    74,658.33x = 2,071,582,894.86
  5. Step 5: Solve for x
    x = 2,071,582,894.86/74,658.33
  6. Step 6: Final answer
    x = 27,747.51

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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.