Home / 84,251.39-126,334.76-28,071.81

Finding the Fourth Proportional to 84,251.39, 126,334.76 and 28,071.81

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Solution

The fourth proportional to 84,251.39, 126,334.76 and 28,071.81 is: 42,093.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,251.39 : 126,334.76 = 28,071.81 : x
  2. Step 2: Convert to fraction form
    84,251.39/126,334.76 = 28,071.81/x
  3. Step 3: Cross multiply
    84,251.39x = 126,334.76 × 28,071.81
  4. Step 4: Simplify right side
    84,251.39x = 3,546,445,238.76
  5. Step 5: Solve for x
    x = 3,546,445,238.76/84,251.39
  6. Step 6: Final answer
    x = 42,093.61

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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.