Home / 43,135.46-64,713.48-13,553.26

Finding the Fourth Proportional to 43,135.46, 64,713.48 and 13,553.26

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Solution

The fourth proportional to 43,135.46, 64,713.48 and 13,553.26 is: 20,333.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,135.46 : 64,713.48 = 13,553.26 : x
  2. Step 2: Convert to fraction form
    43,135.46/64,713.48 = 13,553.26/x
  3. Step 3: Cross multiply
    43,135.46x = 64,713.48 × 13,553.26
  4. Step 4: Simplify right side
    43,135.46x = 877,078,619.94
  5. Step 5: Solve for x
    x = 877,078,619.94/43,135.46
  6. Step 6: Final answer
    x = 20,333.12

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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.