Home / 43,152.73-64,732.61-11,987.98

Finding the Fourth Proportional to 43,152.73, 64,732.61 and 11,987.98

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Solution

The fourth proportional to 43,152.73, 64,732.61 and 11,987.98 is: 17,982.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,152.73 : 64,732.61 = 11,987.98 : x
  2. Step 2: Convert to fraction form
    43,152.73/64,732.61 = 11,987.98/x
  3. Step 3: Cross multiply
    43,152.73x = 64,732.61 × 11,987.98
  4. Step 4: Simplify right side
    43,152.73x = 776,013,234.03
  5. Step 5: Solve for x
    x = 776,013,234.03/43,152.73
  6. Step 6: Final answer
    x = 17,982.95

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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.