Home / 53,109.87-79,668.90-13,667.37

Finding the Fourth Proportional to 53,109.87, 79,668.90 and 13,667.37

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Solution

The fourth proportional to 53,109.87, 79,668.90 and 13,667.37 is: 20,502.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,109.87 : 79,668.90 = 13,667.37 : x
  2. Step 2: Convert to fraction form
    53,109.87/79,668.90 = 13,667.37/x
  3. Step 3: Cross multiply
    53,109.87x = 79,668.90 × 13,667.37
  4. Step 4: Simplify right side
    53,109.87x = 1,088,864,333.79
  5. Step 5: Solve for x
    x = 1,088,864,333.79/53,109.87
  6. Step 6: Final answer
    x = 20,502.11

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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.