Home / 71,015.20-106,514.93-25,421.09

Finding the Fourth Proportional to 71,015.20, 106,514.93 and 25,421.09

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Solution

The fourth proportional to 71,015.20, 106,514.93 and 25,421.09 is: 38,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,015.20 : 106,514.93 = 25,421.09 : x
  2. Step 2: Convert to fraction form
    71,015.20/106,514.93 = 25,421.09/x
  3. Step 3: Cross multiply
    71,015.20x = 106,514.93 × 25,421.09
  4. Step 4: Simplify right side
    71,015.20x = 2,707,725,152.85
  5. Step 5: Solve for x
    x = 2,707,725,152.85/71,015.20
  6. Step 6: Final answer
    x = 38,128.81

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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.