Home / 65,221.58-97,819.53-20,836.37

Finding the Fourth Proportional to 65,221.58, 97,819.53 and 20,836.37

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Solution

The fourth proportional to 65,221.58, 97,819.53 and 20,836.37 is: 31,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,221.58 : 97,819.53 = 20,836.37 : x
  2. Step 2: Convert to fraction form
    65,221.58/97,819.53 = 20,836.37/x
  3. Step 3: Cross multiply
    65,221.58x = 97,819.53 × 20,836.37
  4. Step 4: Simplify right side
    65,221.58x = 2,038,203,920.31
  5. Step 5: Solve for x
    x = 2,038,203,920.31/65,221.58
  6. Step 6: Final answer
    x = 31,250.45

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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.