Home / 51,782.96-77,659.40-20,185.98

Finding the Fourth Proportional to 51,782.96, 77,659.40 and 20,185.98

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Solution

The fourth proportional to 51,782.96, 77,659.40 and 20,185.98 is: 30,273.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,782.96 : 77,659.40 = 20,185.98 : x
  2. Step 2: Convert to fraction form
    51,782.96/77,659.40 = 20,185.98/x
  3. Step 3: Cross multiply
    51,782.96x = 77,659.40 × 20,185.98
  4. Step 4: Simplify right side
    51,782.96x = 1,567,631,095.21
  5. Step 5: Solve for x
    x = 1,567,631,095.21/51,782.96
  6. Step 6: Final answer
    x = 30,273.11

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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.