Home / 74,042.64-102,179.36-40,051.12

Finding the Fourth Proportional to 74,042.64, 102,179.36 and 40,051.12

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Solution

The fourth proportional to 74,042.64, 102,179.36 and 40,051.12 is: 55,270.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,042.64 : 102,179.36 = 40,051.12 : x
  2. Step 2: Convert to fraction form
    74,042.64/102,179.36 = 40,051.12/x
  3. Step 3: Cross multiply
    74,042.64x = 102,179.36 × 40,051.12
  4. Step 4: Simplify right side
    74,042.64x = 4,092,397,808.88
  5. Step 5: Solve for x
    x = 4,092,397,808.88/74,042.64
  6. Step 6: Final answer
    x = 55,270.83

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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.