Home / 74,884.94-103,345.40-40,896.58

Finding the Fourth Proportional to 74,884.94, 103,345.40 and 40,896.58

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Solution

The fourth proportional to 74,884.94, 103,345.40 and 40,896.58 is: 56,439.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,884.94 : 103,345.40 = 40,896.58 : x
  2. Step 2: Convert to fraction form
    74,884.94/103,345.40 = 40,896.58/x
  3. Step 3: Cross multiply
    74,884.94x = 103,345.40 × 40,896.58
  4. Step 4: Simplify right side
    74,884.94x = 4,226,473,418.73
  5. Step 5: Solve for x
    x = 4,226,473,418.73/74,884.94
  6. Step 6: Final answer
    x = 56,439.56

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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.