Home / 53,187.71-79,795.38-19,910.39

Finding the Fourth Proportional to 53,187.71, 79,795.38 and 19,910.39

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Solution

The fourth proportional to 53,187.71, 79,795.38 and 19,910.39 is: 29,870.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,187.71 : 79,795.38 = 19,910.39 : x
  2. Step 2: Convert to fraction form
    53,187.71/79,795.38 = 19,910.39/x
  3. Step 3: Cross multiply
    53,187.71x = 79,795.38 × 19,910.39
  4. Step 4: Simplify right side
    53,187.71x = 1,588,757,136.00
  5. Step 5: Solve for x
    x = 1,588,757,136.00/53,187.71
  6. Step 6: Final answer
    x = 29,870.76

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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.