Home / 78,215.22-107,932.70-44,221.75

Finding the Fourth Proportional to 78,215.22, 107,932.70 and 44,221.75

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Solution

The fourth proportional to 78,215.22, 107,932.70 and 44,221.75 is: 61,023.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,215.22 : 107,932.70 = 44,221.75 : x
  2. Step 2: Convert to fraction form
    78,215.22/107,932.70 = 44,221.75/x
  3. Step 3: Cross multiply
    78,215.22x = 107,932.70 × 44,221.75
  4. Step 4: Simplify right side
    78,215.22x = 4,772,972,716.95
  5. Step 5: Solve for x
    x = 4,772,972,716.95/78,215.22
  6. Step 6: Final answer
    x = 61,023.58

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1.5x scale

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.