Home / 43,150.73-64,729.61-11,985.98

Finding the Fourth Proportional to 43,150.73, 64,729.61 and 11,985.98

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Solution

The fourth proportional to 43,150.73, 64,729.61 and 11,985.98 is: 17,979.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,150.73 : 64,729.61 = 11,985.98 : x
  2. Step 2: Convert to fraction form
    43,150.73/64,729.61 = 11,985.98/x
  3. Step 3: Cross multiply
    43,150.73x = 64,729.61 × 11,985.98
  4. Step 4: Simplify right side
    43,150.73x = 775,847,750.94
  5. Step 5: Solve for x
    x = 775,847,750.94/43,150.73
  6. Step 6: Final answer
    x = 17,979.94

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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.