Home / 43,288.56-64,936.08-12,126.24

Finding the Fourth Proportional to 43,288.56, 64,936.08 and 12,126.24

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Solution

The fourth proportional to 43,288.56, 64,936.08 and 12,126.24 is: 18,190.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,288.56 : 64,936.08 = 12,126.24 : x
  2. Step 2: Convert to fraction form
    43,288.56/64,936.08 = 12,126.24/x
  3. Step 3: Cross multiply
    43,288.56x = 64,936.08 × 12,126.24
  4. Step 4: Simplify right side
    43,288.56x = 787,430,490.74
  5. Step 5: Solve for x
    x = 787,430,490.74/43,288.56
  6. Step 6: Final answer
    x = 18,190.27

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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.