Home / 74,181.14-102,370-40,189.86

Finding the Fourth Proportional to 74,181.14, 102,370 and 40,189.86

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Solution

The fourth proportional to 74,181.14, 102,370 and 40,189.86 is: 55,462.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,181.14 : 102,370 = 40,189.86 : x
  2. Step 2: Convert to fraction form
    74,181.14/102,370 = 40,189.86/x
  3. Step 3: Cross multiply
    74,181.14x = 102,370 × 40,189.86
  4. Step 4: Simplify right side
    74,181.14x = 4,114,235,968.20
  5. Step 5: Solve for x
    x = 4,114,235,968.20/74,181.14
  6. Step 6: Final answer
    x = 55,462.02

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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.