Home / 43,049.60-64,564.12-18,090.12

Finding the Fourth Proportional to 43,049.60, 64,564.12 and 18,090.12

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Solution

The fourth proportional to 43,049.60, 64,564.12 and 18,090.12 is: 27,130.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,049.60 : 64,564.12 = 18,090.12 : x
  2. Step 2: Convert to fraction form
    43,049.60/64,564.12 = 18,090.12/x
  3. Step 3: Cross multiply
    43,049.60x = 64,564.12 × 18,090.12
  4. Step 4: Simplify right side
    43,049.60x = 1,167,972,678.49
  5. Step 5: Solve for x
    x = 1,167,972,678.49/43,049.60
  6. Step 6: Final answer
    x = 27,130.86

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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.