Home / 43,129.17-64,689.48-13,546.22

Finding the Fourth Proportional to 43,129.17, 64,689.48 and 13,546.22

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Solution

The fourth proportional to 43,129.17, 64,689.48 and 13,546.22 is: 20,317.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,129.17 : 64,689.48 = 13,546.22 : x
  2. Step 2: Convert to fraction form
    43,129.17/64,689.48 = 13,546.22/x
  3. Step 3: Cross multiply
    43,129.17x = 64,689.48 × 13,546.22
  4. Step 4: Simplify right side
    43,129.17x = 876,297,604.32
  5. Step 5: Solve for x
    x = 876,297,604.32/43,129.17
  6. Step 6: Final answer
    x = 20,317.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.