Home / 42,757.04-64,136.64-20,262.44

Finding the Fourth Proportional to 42,757.04, 64,136.64 and 20,262.44

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Solution

The fourth proportional to 42,757.04, 64,136.64 and 20,262.44 is: 30,394.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,757.04 : 64,136.64 = 20,262.44 : x
  2. Step 2: Convert to fraction form
    42,757.04/64,136.64 = 20,262.44/x
  3. Step 3: Cross multiply
    42,757.04x = 64,136.64 × 20,262.44
  4. Step 4: Simplify right side
    42,757.04x = 1,299,564,499.12
  5. Step 5: Solve for x
    x = 1,299,564,499.12/42,757.04
  6. Step 6: Final answer
    x = 30,394.17

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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.