Home / 74,424.78-102,705.84-40,433.04

Finding the Fourth Proportional to 74,424.78, 102,705.84 and 40,433.04

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Solution

The fourth proportional to 74,424.78, 102,705.84 and 40,433.04 is: 55,797.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,424.78 : 102,705.84 = 40,433.04 : x
  2. Step 2: Convert to fraction form
    74,424.78/102,705.84 = 40,433.04/x
  3. Step 3: Cross multiply
    74,424.78x = 102,705.84 × 40,433.04
  4. Step 4: Simplify right side
    74,424.78x = 4,152,709,336.95
  5. Step 5: Solve for x
    x = 4,152,709,336.95/74,424.78
  6. Step 6: Final answer
    x = 55,797.40

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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.