Home / 75,127.76-103,672.32-41,129.73

Finding the Fourth Proportional to 75,127.76, 103,672.32 and 41,129.73

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Solution

The fourth proportional to 75,127.76, 103,672.32 and 41,129.73 is: 56,756.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,127.76 : 103,672.32 = 41,129.73 : x
  2. Step 2: Convert to fraction form
    75,127.76/103,672.32 = 41,129.73/x
  3. Step 3: Cross multiply
    75,127.76x = 103,672.32 × 41,129.73
  4. Step 4: Simplify right side
    75,127.76x = 4,264,014,530.07
  5. Step 5: Solve for x
    x = 4,264,014,530.07/75,127.76
  6. Step 6: Final answer
    x = 56,756.85

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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.