Home / 75,286.56-103,909.14-51,404.52

Finding the Fourth Proportional to 75,286.56, 103,909.14 and 51,404.52

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Solution

The fourth proportional to 75,286.56, 103,909.14 and 51,404.52 is: 70,947.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,286.56 : 103,909.14 = 51,404.52 : x
  2. Step 2: Convert to fraction form
    75,286.56/103,909.14 = 51,404.52/x
  3. Step 3: Cross multiply
    75,286.56x = 103,909.14 × 51,404.52
  4. Step 4: Simplify right side
    75,286.56x = 5,341,399,465.31
  5. Step 5: Solve for x
    x = 5,341,399,465.31/75,286.56
  6. Step 6: Final answer
    x = 70,947.58

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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.