Home / 53,189.13-79,797.36-19,909.67

Finding the Fourth Proportional to 53,189.13, 79,797.36 and 19,909.67

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Solution

The fourth proportional to 53,189.13, 79,797.36 and 19,909.67 is: 29,869.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,189.13 : 79,797.36 = 19,909.67 : x
  2. Step 2: Convert to fraction form
    53,189.13/79,797.36 = 19,909.67/x
  3. Step 3: Cross multiply
    53,189.13x = 79,797.36 × 19,909.67
  4. Step 4: Simplify right side
    53,189.13x = 1,588,739,104.47
  5. Step 5: Solve for x
    x = 1,588,739,104.47/53,189.13
  6. Step 6: Final answer
    x = 29,869.62

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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.