Home / 84,227.40-126,339.48-28,071.60

Finding the Fourth Proportional to 84,227.40, 126,339.48 and 28,071.60

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Solution

The fourth proportional to 84,227.40, 126,339.48 and 28,071.60 is: 42,106.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,227.40 : 126,339.48 = 28,071.60 : x
  2. Step 2: Convert to fraction form
    84,227.40/126,339.48 = 28,071.60/x
  3. Step 3: Cross multiply
    84,227.40x = 126,339.48 × 28,071.60
  4. Step 4: Simplify right side
    84,227.40x = 3,546,551,346.77
  5. Step 5: Solve for x
    x = 3,546,551,346.77/84,227.40
  6. Step 6: Final answer
    x = 42,106.86

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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.