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Finding the Fourth Proportional to 73,010.84, 109,516.25 and 28,658.48

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Solution

The fourth proportional to 73,010.84, 109,516.25 and 28,658.48 is: 42,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,010.84 : 109,516.25 = 28,658.48 : x
  2. Step 2: Convert to fraction form
    73,010.84/109,516.25 = 28,658.48/x
  3. Step 3: Cross multiply
    73,010.84x = 109,516.25 × 28,658.48
  4. Step 4: Simplify right side
    73,010.84x = 3,138,568,784.36
  5. Step 5: Solve for x
    x = 3,138,568,784.36/73,010.84
  6. Step 6: Final answer
    x = 42,987.71

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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.