Home / 43,301.48-64,944.90-12,129.56

Finding the Fourth Proportional to 43,301.48, 64,944.90 and 12,129.56

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Solution

The fourth proportional to 43,301.48, 64,944.90 and 12,129.56 is: 18,192.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,301.48 : 64,944.90 = 12,129.56 : x
  2. Step 2: Convert to fraction form
    43,301.48/64,944.90 = 12,129.56/x
  3. Step 3: Cross multiply
    43,301.48x = 64,944.90 × 12,129.56
  4. Step 4: Simplify right side
    43,301.48x = 787,753,061.24
  5. Step 5: Solve for x
    x = 787,753,061.24/43,301.48
  6. Step 6: Final answer
    x = 18,192.29

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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.