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Finding the Fourth Proportional to 79,953.74, 119,908.71 and 30,029.97

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Solution

The fourth proportional to 79,953.74, 119,908.71 and 30,029.97 is: 45,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,953.74 : 119,908.71 = 30,029.97 : x
  2. Step 2: Convert to fraction form
    79,953.74/119,908.71 = 30,029.97/x
  3. Step 3: Cross multiply
    79,953.74x = 119,908.71 × 30,029.97
  4. Step 4: Simplify right side
    79,953.74x = 3,600,854,964.04
  5. Step 5: Solve for x
    x = 3,600,854,964.04/79,953.74
  6. Step 6: Final answer
    x = 45,036.73

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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.