Home / 74,274.77-102,499.70-40,283.43

Finding the Fourth Proportional to 74,274.77, 102,499.70 and 40,283.43

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Solution

The fourth proportional to 74,274.77, 102,499.70 and 40,283.43 is: 55,591.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,274.77 : 102,499.70 = 40,283.43 : x
  2. Step 2: Convert to fraction form
    74,274.77/102,499.70 = 40,283.43/x
  3. Step 3: Cross multiply
    74,274.77x = 102,499.70 × 40,283.43
  4. Step 4: Simplify right side
    74,274.77x = 4,129,039,288.55
  5. Step 5: Solve for x
    x = 4,129,039,288.55/74,274.77
  6. Step 6: Final answer
    x = 55,591.42

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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.