Home / 43,175.40-64,750.64-18,221.04

Finding the Fourth Proportional to 43,175.40, 64,750.64 and 18,221.04

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Solution

The fourth proportional to 43,175.40, 64,750.64 and 18,221.04 is: 27,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,175.40 : 64,750.64 = 18,221.04 : x
  2. Step 2: Convert to fraction form
    43,175.40/64,750.64 = 18,221.04/x
  3. Step 3: Cross multiply
    43,175.40x = 64,750.64 × 18,221.04
  4. Step 4: Simplify right side
    43,175.40x = 1,179,824,001.47
  5. Step 5: Solve for x
    x = 1,179,824,001.47/43,175.40
  6. Step 6: Final answer
    x = 27,326.30

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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.