Home / 51,699.26-77,549.20-18,420.62

Finding the Fourth Proportional to 51,699.26, 77,549.20 and 18,420.62

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Solution

The fourth proportional to 51,699.26, 77,549.20 and 18,420.62 is: 27,631.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,699.26 : 77,549.20 = 18,420.62 : x
  2. Step 2: Convert to fraction form
    51,699.26/77,549.20 = 18,420.62/x
  3. Step 3: Cross multiply
    51,699.26x = 77,549.20 × 18,420.62
  4. Step 4: Simplify right side
    51,699.26x = 1,428,503,910.71
  5. Step 5: Solve for x
    x = 1,428,503,910.71/51,699.26
  6. Step 6: Final answer
    x = 27,631.03

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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.