Home / 75,239.89-103,828.79-41,247.21

Finding the Fourth Proportional to 75,239.89, 103,828.79 and 41,247.21

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Solution

The fourth proportional to 75,239.89, 103,828.79 and 41,247.21 is: 56,919.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,239.89 : 103,828.79 = 41,247.21 : x
  2. Step 2: Convert to fraction form
    75,239.89/103,828.79 = 41,247.21/x
  3. Step 3: Cross multiply
    75,239.89x = 103,828.79 × 41,247.21
  4. Step 4: Simplify right side
    75,239.89x = 4,282,647,905.18
  5. Step 5: Solve for x
    x = 4,282,647,905.18/75,239.89
  6. Step 6: Final answer
    x = 56,919.92

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1.5x scale

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.