Home / 75,404.72-103,988.99-51,241.75

Finding the Fourth Proportional to 75,404.72, 103,988.99 and 51,241.75

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Solution

The fourth proportional to 75,404.72, 103,988.99 and 51,241.75 is: 70,666.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,404.72 : 103,988.99 = 51,241.75 : x
  2. Step 2: Convert to fraction form
    75,404.72/103,988.99 = 51,241.75/x
  3. Step 3: Cross multiply
    75,404.72x = 103,988.99 × 51,241.75
  4. Step 4: Simplify right side
    75,404.72x = 5,328,577,696.46
  5. Step 5: Solve for x
    x = 5,328,577,696.46/75,404.72
  6. Step 6: Final answer
    x = 70,666.37

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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.