Home / 57,711.72-86,577.30-18,279.84

Finding the Fourth Proportional to 57,711.72, 86,577.30 and 18,279.84

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Solution

The fourth proportional to 57,711.72, 86,577.30 and 18,279.84 is: 27,422.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,711.72 : 86,577.30 = 18,279.84 : x
  2. Step 2: Convert to fraction form
    57,711.72/86,577.30 = 18,279.84/x
  3. Step 3: Cross multiply
    57,711.72x = 86,577.30 × 18,279.84
  4. Step 4: Simplify right side
    57,711.72x = 1,582,619,191.63
  5. Step 5: Solve for x
    x = 1,582,619,191.63/57,711.72
  6. Step 6: Final answer
    x = 27,422.84

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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.