Home / 75,479.88-113,239.26-28,707.24

Finding the Fourth Proportional to 75,479.88, 113,239.26 and 28,707.24

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Solution

The fourth proportional to 75,479.88, 113,239.26 and 28,707.24 is: 43,068.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,479.88 : 113,239.26 = 28,707.24 : x
  2. Step 2: Convert to fraction form
    75,479.88/113,239.26 = 28,707.24/x
  3. Step 3: Cross multiply
    75,479.88x = 113,239.26 × 28,707.24
  4. Step 4: Simplify right side
    75,479.88x = 3,250,786,614.24
  5. Step 5: Solve for x
    x = 3,250,786,614.24/75,479.88
  6. Step 6: Final answer
    x = 43,068.25

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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.