Home / 56,759.28-78,245.97-39,710.71

Finding the Fourth Proportional to 56,759.28, 78,245.97 and 39,710.71

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Solution

The fourth proportional to 56,759.28, 78,245.97 and 39,710.71 is: 54,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,759.28 : 78,245.97 = 39,710.71 : x
  2. Step 2: Convert to fraction form
    56,759.28/78,245.97 = 39,710.71/x
  3. Step 3: Cross multiply
    56,759.28x = 78,245.97 × 39,710.71
  4. Step 4: Simplify right side
    56,759.28x = 3,107,203,023.34
  5. Step 5: Solve for x
    x = 3,107,203,023.34/56,759.28
  6. Step 6: Final answer
    x = 54,743.52

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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.