Home / 53,169.16-79,751.68-13,188.25

Finding the Fourth Proportional to 53,169.16, 79,751.68 and 13,188.25

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Solution

The fourth proportional to 53,169.16, 79,751.68 and 13,188.25 is: 19,781.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,169.16 : 79,751.68 = 13,188.25 : x
  2. Step 2: Convert to fraction form
    53,169.16/79,751.68 = 13,188.25/x
  3. Step 3: Cross multiply
    53,169.16x = 79,751.68 × 13,188.25
  4. Step 4: Simplify right side
    53,169.16x = 1,051,785,093.76
  5. Step 5: Solve for x
    x = 1,051,785,093.76/53,169.16
  6. Step 6: Final answer
    x = 19,781.86

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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.