Home / 74,521.23-111,811.71-27,139.62

Finding the Fourth Proportional to 74,521.23, 111,811.71 and 27,139.62

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Solution

The fourth proportional to 74,521.23, 111,811.71 and 27,139.62 is: 40,720.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,521.23 : 111,811.71 = 27,139.62 : x
  2. Step 2: Convert to fraction form
    74,521.23/111,811.71 = 27,139.62/x
  3. Step 3: Cross multiply
    74,521.23x = 111,811.71 × 27,139.62
  4. Step 4: Simplify right side
    74,521.23x = 3,034,527,842.02
  5. Step 5: Solve for x
    x = 3,034,527,842.02/74,521.23
  6. Step 6: Final answer
    x = 40,720.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.