Home / 73,928.57-102,021.42-40,394.57

Finding the Fourth Proportional to 73,928.57, 102,021.42 and 40,394.57

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Solution

The fourth proportional to 73,928.57, 102,021.42 and 40,394.57 is: 55,744.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,928.57 : 102,021.42 = 40,394.57 : x
  2. Step 2: Convert to fraction form
    73,928.57/102,021.42 = 40,394.57/x
  3. Step 3: Cross multiply
    73,928.57x = 102,021.42 × 40,394.57
  4. Step 4: Simplify right side
    73,928.57x = 4,121,110,679.61
  5. Step 5: Solve for x
    x = 4,121,110,679.61/73,928.57
  6. Step 6: Final answer
    x = 55,744.50

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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.