Home / 84,719.76-127,072.75-28,558.66

Finding the Fourth Proportional to 84,719.76, 127,072.75 and 28,558.66

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Solution

The fourth proportional to 84,719.76, 127,072.75 and 28,558.66 is: 42,835.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,719.76 : 127,072.75 = 28,558.66 : x
  2. Step 2: Convert to fraction form
    84,719.76/127,072.75 = 28,558.66/x
  3. Step 3: Cross multiply
    84,719.76x = 127,072.75 × 28,558.66
  4. Step 4: Simplify right side
    84,719.76x = 3,629,027,365.25
  5. Step 5: Solve for x
    x = 3,629,027,365.25/84,719.76
  6. Step 6: Final answer
    x = 42,835.67

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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.