Home / 74,518.27-102,836.40-40,527.43

Finding the Fourth Proportional to 74,518.27, 102,836.40 and 40,527.43

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Solution

The fourth proportional to 74,518.27, 102,836.40 and 40,527.43 is: 55,928.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,518.27 : 102,836.40 = 40,527.43 : x
  2. Step 2: Convert to fraction form
    74,518.27/102,836.40 = 40,527.43/x
  3. Step 3: Cross multiply
    74,518.27x = 102,836.40 × 40,527.43
  4. Step 4: Simplify right side
    74,518.27x = 4,167,695,002.45
  5. Step 5: Solve for x
    x = 4,167,695,002.45/74,518.27
  6. Step 6: Final answer
    x = 55,928.50

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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.