Home / 43,187.40-64,745.10-18,246.60

Finding the Fourth Proportional to 43,187.40, 64,745.10 and 18,246.60

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Solution

The fourth proportional to 43,187.40, 64,745.10 and 18,246.60 is: 27,354.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,187.40 : 64,745.10 = 18,246.60 : x
  2. Step 2: Convert to fraction form
    43,187.40/64,745.10 = 18,246.60/x
  3. Step 3: Cross multiply
    43,187.40x = 64,745.10 × 18,246.60
  4. Step 4: Simplify right side
    43,187.40x = 1,181,377,941.66
  5. Step 5: Solve for x
    x = 1,181,377,941.66/43,187.40
  6. Step 6: Final answer
    x = 27,354.69

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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.