Home / 51,372.29-70,892.34-28,711.37

Finding the Fourth Proportional to 51,372.29, 70,892.34 and 28,711.37

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Solution

The fourth proportional to 51,372.29, 70,892.34 and 28,711.37 is: 39,620.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,372.29 : 70,892.34 = 28,711.37 : x
  2. Step 2: Convert to fraction form
    51,372.29/70,892.34 = 28,711.37/x
  3. Step 3: Cross multiply
    51,372.29x = 70,892.34 × 28,711.37
  4. Step 4: Simplify right side
    51,372.29x = 2,035,415,849.44
  5. Step 5: Solve for x
    x = 2,035,415,849.44/51,372.29
  6. Step 6: Final answer
    x = 39,620.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.