Home / 56,786.39-85,125.36-21,238.07

Finding the Fourth Proportional to 56,786.39, 85,125.36 and 21,238.07

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Solution

The fourth proportional to 56,786.39, 85,125.36 and 21,238.07 is: 31,836.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,786.39 : 85,125.36 = 21,238.07 : x
  2. Step 2: Convert to fraction form
    56,786.39/85,125.36 = 21,238.07/x
  3. Step 3: Cross multiply
    56,786.39x = 85,125.36 × 21,238.07
  4. Step 4: Simplify right side
    56,786.39x = 1,807,898,567.27
  5. Step 5: Solve for x
    x = 1,807,898,567.27/56,786.39
  6. Step 6: Final answer
    x = 31,836.83

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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.