Home / 75,715.50-104,488.09-41,725.20

Finding the Fourth Proportional to 75,715.50, 104,488.09 and 41,725.20

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Solution

The fourth proportional to 75,715.50, 104,488.09 and 41,725.20 is: 57,581.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,715.50 : 104,488.09 = 41,725.20 : x
  2. Step 2: Convert to fraction form
    75,715.50/104,488.09 = 41,725.20/x
  3. Step 3: Cross multiply
    75,715.50x = 104,488.09 × 41,725.20
  4. Step 4: Simplify right side
    75,715.50x = 4,359,786,661.93
  5. Step 5: Solve for x
    x = 4,359,786,661.93/75,715.50
  6. Step 6: Final answer
    x = 57,581.17

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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.