Home / 74,069.82-102,212.43-40,529.34

Finding the Fourth Proportional to 74,069.82, 102,212.43 and 40,529.34

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Solution

The fourth proportional to 74,069.82, 102,212.43 and 40,529.34 is: 55,928.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,069.82 : 102,212.43 = 40,529.34 : x
  2. Step 2: Convert to fraction form
    74,069.82/102,212.43 = 40,529.34/x
  3. Step 3: Cross multiply
    74,069.82x = 102,212.43 × 40,529.34
  4. Step 4: Simplify right side
    74,069.82x = 4,142,602,327.70
  5. Step 5: Solve for x
    x = 4,142,602,327.70/74,069.82
  6. Step 6: Final answer
    x = 55,928.34

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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.