Home / 76,221.06-114,331.65-31,823.61

Finding the Fourth Proportional to 76,221.06, 114,331.65 and 31,823.61

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Solution

The fourth proportional to 76,221.06, 114,331.65 and 31,823.61 is: 47,735.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,221.06 : 114,331.65 = 31,823.61 : x
  2. Step 2: Convert to fraction form
    76,221.06/114,331.65 = 31,823.61/x
  3. Step 3: Cross multiply
    76,221.06x = 114,331.65 × 31,823.61
  4. Step 4: Simplify right side
    76,221.06x = 3,638,445,840.26
  5. Step 5: Solve for x
    x = 3,638,445,840.26/76,221.06
  6. Step 6: Final answer
    x = 47,735.44

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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.