Home / 51,177.00-76,765.49-19,990.38

Finding the Fourth Proportional to 51,177.00, 76,765.49 and 19,990.38

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Solution

The fourth proportional to 51,177.00, 76,765.49 and 19,990.38 is: 29,985.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,177.00 : 76,765.49 = 19,990.38 : x
  2. Step 2: Convert to fraction form
    51,177.00/76,765.49 = 19,990.38/x
  3. Step 3: Cross multiply
    51,177.00x = 76,765.49 × 19,990.38
  4. Step 4: Simplify right side
    51,177.00x = 1,534,570,982.13
  5. Step 5: Solve for x
    x = 1,534,570,982.13/51,177.00
  6. Step 6: Final answer
    x = 29,985.56

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1.5x scale

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.