Home / 56,238.18-84,369.83-21,178.14

Finding the Fourth Proportional to 56,238.18, 84,369.83 and 21,178.14

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Solution

The fourth proportional to 56,238.18, 84,369.83 and 21,178.14 is: 31,771.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,238.18 : 84,369.83 = 21,178.14 : x
  2. Step 2: Convert to fraction form
    56,238.18/84,369.83 = 21,178.14/x
  3. Step 3: Cross multiply
    56,238.18x = 84,369.83 × 21,178.14
  4. Step 4: Simplify right side
    56,238.18x = 1,786,795,965.63
  5. Step 5: Solve for x
    x = 1,786,795,965.63/56,238.18
  6. Step 6: Final answer
    x = 31,771.94

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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.