Home / 74,201.86-102,398.25-40,667.86

Finding the Fourth Proportional to 74,201.86, 102,398.25 and 40,667.86

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Solution

The fourth proportional to 74,201.86, 102,398.25 and 40,667.86 is: 56,121.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,201.86 : 102,398.25 = 40,667.86 : x
  2. Step 2: Convert to fraction form
    74,201.86/102,398.25 = 40,667.86/x
  3. Step 3: Cross multiply
    74,201.86x = 102,398.25 × 40,667.86
  4. Step 4: Simplify right side
    74,201.86x = 4,164,317,695.25
  5. Step 5: Solve for x
    x = 4,164,317,695.25/74,201.86
  6. Step 6: Final answer
    x = 56,121.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.