Home / 76,222.61-114,315.54-31,825.30

Finding the Fourth Proportional to 76,222.61, 114,315.54 and 31,825.30

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Solution

The fourth proportional to 76,222.61, 114,315.54 and 31,825.30 is: 47,730.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,222.61 : 114,315.54 = 31,825.30 : x
  2. Step 2: Convert to fraction form
    76,222.61/114,315.54 = 31,825.30/x
  3. Step 3: Cross multiply
    76,222.61x = 114,315.54 × 31,825.30
  4. Step 4: Simplify right side
    76,222.61x = 3,638,126,355.16
  5. Step 5: Solve for x
    x = 3,638,126,355.16/76,222.61
  6. Step 6: Final answer
    x = 47,730.28

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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.