Home / 52,771.38-79,156.26-21,189.48

Finding the Fourth Proportional to 52,771.38, 79,156.26 and 21,189.48

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Solution

The fourth proportional to 52,771.38, 79,156.26 and 21,189.48 is: 31,783.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,771.38 : 79,156.26 = 21,189.48 : x
  2. Step 2: Convert to fraction form
    52,771.38/79,156.26 = 21,189.48/x
  3. Step 3: Cross multiply
    52,771.38x = 79,156.26 × 21,189.48
  4. Step 4: Simplify right side
    52,771.38x = 1,677,279,988.14
  5. Step 5: Solve for x
    x = 1,677,279,988.14/52,771.38
  6. Step 6: Final answer
    x = 31,783.89

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1.5x scale

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.