Home / 72,014.85-108,022.28-19,424.33

Finding the Fourth Proportional to 72,014.85, 108,022.28 and 19,424.33

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Solution

The fourth proportional to 72,014.85, 108,022.28 and 19,424.33 is: 29,136.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,014.85 : 108,022.28 = 19,424.33 : x
  2. Step 2: Convert to fraction form
    72,014.85/108,022.28 = 19,424.33/x
  3. Step 3: Cross multiply
    72,014.85x = 108,022.28 × 19,424.33
  4. Step 4: Simplify right side
    72,014.85x = 2,098,260,414.07
  5. Step 5: Solve for x
    x = 2,098,260,414.07/72,014.85
  6. Step 6: Final answer
    x = 29,136.50

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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.