Home / 71,132.45-106,698.68-21,247.59

Finding the Fourth Proportional to 71,132.45, 106,698.68 and 21,247.59

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Solution

The fourth proportional to 71,132.45, 106,698.68 and 21,247.59 is: 31,871.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,132.45 : 106,698.68 = 21,247.59 : x
  2. Step 2: Convert to fraction form
    71,132.45/106,698.68 = 21,247.59/x
  3. Step 3: Cross multiply
    71,132.45x = 106,698.68 × 21,247.59
  4. Step 4: Simplify right side
    71,132.45x = 2,267,089,699.94
  5. Step 5: Solve for x
    x = 2,267,089,699.94/71,132.45
  6. Step 6: Final answer
    x = 31,871.39

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1.5x scale

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.