Home / 71,403.24-107,110.20-21,479.34

Finding the Fourth Proportional to 71,403.24, 107,110.20 and 21,479.34

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Solution

The fourth proportional to 71,403.24, 107,110.20 and 21,479.34 is: 32,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,403.24 : 107,110.20 = 21,479.34 : x
  2. Step 2: Convert to fraction form
    71,403.24/107,110.20 = 21,479.34/x
  3. Step 3: Cross multiply
    71,403.24x = 107,110.20 × 21,479.34
  4. Step 4: Simplify right side
    71,403.24x = 2,300,656,403.27
  5. Step 5: Solve for x
    x = 2,300,656,403.27/71,403.24
  6. Step 6: Final answer
    x = 32,220.62

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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.