Home / 74,327.87-102,572.73-40,336.35

Finding the Fourth Proportional to 74,327.87, 102,572.73 and 40,336.35

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Solution

The fourth proportional to 74,327.87, 102,572.73 and 40,336.35 is: 55,664.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,327.87 : 102,572.73 = 40,336.35 : x
  2. Step 2: Convert to fraction form
    74,327.87/102,572.73 = 40,336.35/x
  3. Step 3: Cross multiply
    74,327.87x = 102,572.73 × 40,336.35
  4. Step 4: Simplify right side
    74,327.87x = 4,137,409,537.74
  5. Step 5: Solve for x
    x = 4,137,409,537.74/74,327.87
  6. Step 6: Final answer
    x = 55,664.31

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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.