Home / 43,015.05-64,526.56-16,721.78

Finding the Fourth Proportional to 43,015.05, 64,526.56 and 16,721.78

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Solution

The fourth proportional to 43,015.05, 64,526.56 and 16,721.78 is: 25,084.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,015.05 : 64,526.56 = 16,721.78 : x
  2. Step 2: Convert to fraction form
    43,015.05/64,526.56 = 16,721.78/x
  3. Step 3: Cross multiply
    43,015.05x = 64,526.56 × 16,721.78
  4. Step 4: Simplify right side
    43,015.05x = 1,078,998,576.04
  5. Step 5: Solve for x
    x = 1,078,998,576.04/43,015.05
  6. Step 6: Final answer
    x = 25,084.21

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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.