Home / 51,177.25-76,765.87-19,990.63

Finding the Fourth Proportional to 51,177.25, 76,765.87 and 19,990.63

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Solution

The fourth proportional to 51,177.25, 76,765.87 and 19,990.63 is: 29,985.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,177.25 : 76,765.87 = 19,990.63 : x
  2. Step 2: Convert to fraction form
    51,177.25/76,765.87 = 19,990.63/x
  3. Step 3: Cross multiply
    51,177.25x = 76,765.87 × 19,990.63
  4. Step 4: Simplify right side
    51,177.25x = 1,534,597,669.99
  5. Step 5: Solve for x
    x = 1,534,597,669.99/51,177.25
  6. Step 6: Final answer
    x = 29,985.94

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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.