Home / 74,691.12-103,072.41-40,699.83

Finding the Fourth Proportional to 74,691.12, 103,072.41 and 40,699.83

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Solution

The fourth proportional to 74,691.12, 103,072.41 and 40,699.83 is: 56,165.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,691.12 : 103,072.41 = 40,699.83 : x
  2. Step 2: Convert to fraction form
    74,691.12/103,072.41 = 40,699.83/x
  3. Step 3: Cross multiply
    74,691.12x = 103,072.41 × 40,699.83
  4. Step 4: Simplify right side
    74,691.12x = 4,195,029,564.69
  5. Step 5: Solve for x
    x = 4,195,029,564.69/74,691.12
  6. Step 6: Final answer
    x = 56,165.04

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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.