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Finding the Fourth Proportional to 56,604, 84,918.96 and 19,668

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Solution

The fourth proportional to 56,604, 84,918.96 and 19,668 is: 29,506.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,604 : 84,918.96 = 19,668 : x
  2. Step 2: Convert to fraction form
    56,604/84,918.96 = 19,668/x
  3. Step 3: Cross multiply
    56,604x = 84,918.96 × 19,668
  4. Step 4: Simplify right side
    56,604x = 1,670,186,105.28
  5. Step 5: Solve for x
    x = 1,670,186,105.28/56,604
  6. Step 6: Final answer
    x = 29,506.50

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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.