Home / 72,516.45-108,771.94-19,924.57

Finding the Fourth Proportional to 72,516.45, 108,771.94 and 19,924.57

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Solution

The fourth proportional to 72,516.45, 108,771.94 and 19,924.57 is: 29,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,516.45 : 108,771.94 = 19,924.57 : x
  2. Step 2: Convert to fraction form
    72,516.45/108,771.94 = 19,924.57/x
  3. Step 3: Cross multiply
    72,516.45x = 108,771.94 × 19,924.57
  4. Step 4: Simplify right side
    72,516.45x = 2,167,234,132.57
  5. Step 5: Solve for x
    x = 2,167,234,132.57/72,516.45
  6. Step 6: Final answer
    x = 29,886.10

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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.