Home / 53,187.72-79,795.38-19,910.40

Finding the Fourth Proportional to 53,187.72, 79,795.38 and 19,910.40

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Solution

The fourth proportional to 53,187.72, 79,795.38 and 19,910.40 is: 29,870.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,187.72 : 79,795.38 = 19,910.40 : x
  2. Step 2: Convert to fraction form
    53,187.72/79,795.38 = 19,910.40/x
  3. Step 3: Cross multiply
    53,187.72x = 79,795.38 × 19,910.40
  4. Step 4: Simplify right side
    53,187.72x = 1,588,757,933.95
  5. Step 5: Solve for x
    x = 1,588,757,933.95/53,187.72
  6. Step 6: Final answer
    x = 29,870.77

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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.