Home / 51,716.81-71,370.15-28,748.79

Finding the Fourth Proportional to 51,716.81, 71,370.15 and 28,748.79

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Solution

The fourth proportional to 51,716.81, 71,370.15 and 28,748.79 is: 39,673.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,716.81 : 71,370.15 = 28,748.79 : x
  2. Step 2: Convert to fraction form
    51,716.81/71,370.15 = 28,748.79/x
  3. Step 3: Cross multiply
    51,716.81x = 71,370.15 × 28,748.79
  4. Step 4: Simplify right side
    51,716.81x = 2,051,805,346.81
  5. Step 5: Solve for x
    x = 2,051,805,346.81/51,716.81
  6. Step 6: Final answer
    x = 39,673.86

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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.