Home / 76,041.70-113,982.36-31,623.74

Finding the Fourth Proportional to 76,041.70, 113,982.36 and 31,623.74

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Solution

The fourth proportional to 76,041.70, 113,982.36 and 31,623.74 is: 47,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,041.70 : 113,982.36 = 31,623.74 : x
  2. Step 2: Convert to fraction form
    76,041.70/113,982.36 = 31,623.74/x
  3. Step 3: Cross multiply
    76,041.70x = 113,982.36 × 31,623.74
  4. Step 4: Simplify right side
    76,041.70x = 3,604,548,517.23
  5. Step 5: Solve for x
    x = 3,604,548,517.23/76,041.70
  6. Step 6: Final answer
    x = 47,402.26

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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.