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Finding the Fourth Proportional to 115,290.08, 172,942.41 and 36,407.42

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Solution

The fourth proportional to 115,290.08, 172,942.41 and 36,407.42 is: 54,613.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,290.08 : 172,942.41 = 36,407.42 : x
  2. Step 2: Convert to fraction form
    115,290.08/172,942.41 = 36,407.42/x
  3. Step 3: Cross multiply
    115,290.08x = 172,942.41 × 36,407.42
  4. Step 4: Simplify right side
    115,290.08x = 6,296,386,956.68
  5. Step 5: Solve for x
    x = 6,296,386,956.68/115,290.08
  6. Step 6: Final answer
    x = 54,613.43

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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.