Home / 74,691.22-103,072.55-40,700.01

Finding the Fourth Proportional to 74,691.22, 103,072.55 and 40,700.01

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Solution

The fourth proportional to 74,691.22, 103,072.55 and 40,700.01 is: 56,165.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,691.22 : 103,072.55 = 40,700.01 : x
  2. Step 2: Convert to fraction form
    74,691.22/103,072.55 = 40,700.01/x
  3. Step 3: Cross multiply
    74,691.22x = 103,072.55 × 40,700.01
  4. Step 4: Simplify right side
    74,691.22x = 4,195,053,815.73
  5. Step 5: Solve for x
    x = 4,195,053,815.73/74,691.22
  6. Step 6: Final answer
    x = 56,165.29

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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.