Home / 75,143.10-103,672.29-43,311.33

Finding the Fourth Proportional to 75,143.10, 103,672.29 and 43,311.33

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Solution

The fourth proportional to 75,143.10, 103,672.29 and 43,311.33 is: 59,755.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,143.10 : 103,672.29 = 43,311.33 : x
  2. Step 2: Convert to fraction form
    75,143.10/103,672.29 = 43,311.33/x
  3. Step 3: Cross multiply
    75,143.10x = 103,672.29 × 43,311.33
  4. Step 4: Simplify right side
    75,143.10x = 4,490,184,764.05
  5. Step 5: Solve for x
    x = 4,490,184,764.05/75,143.10
  6. Step 6: Final answer
    x = 59,755.12

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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.