Home / 74,921.62-103,390.14-40,930.26

Finding the Fourth Proportional to 74,921.62, 103,390.14 and 40,930.26

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Solution

The fourth proportional to 74,921.62, 103,390.14 and 40,930.26 is: 56,482.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,921.62 : 103,390.14 = 40,930.26 : x
  2. Step 2: Convert to fraction form
    74,921.62/103,390.14 = 40,930.26/x
  3. Step 3: Cross multiply
    74,921.62x = 103,390.14 × 40,930.26
  4. Step 4: Simplify right side
    74,921.62x = 4,231,784,860.82
  5. Step 5: Solve for x
    x = 4,231,784,860.82/74,921.62
  6. Step 6: Final answer
    x = 56,482.83

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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.