Home / 75,122.08-103,666.08-41,129.72

Finding the Fourth Proportional to 75,122.08, 103,666.08 and 41,129.72

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Solution

The fourth proportional to 75,122.08, 103,666.08 and 41,129.72 is: 56,757.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,122.08 : 103,666.08 = 41,129.72 : x
  2. Step 2: Convert to fraction form
    75,122.08/103,666.08 = 41,129.72/x
  3. Step 3: Cross multiply
    75,122.08x = 103,666.08 × 41,129.72
  4. Step 4: Simplify right side
    75,122.08x = 4,263,757,220.32
  5. Step 5: Solve for x
    x = 4,263,757,220.32/75,122.08
  6. Step 6: Final answer
    x = 56,757.71

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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.