Home / 51,771.27-77,686.40-20,177.22

Finding the Fourth Proportional to 51,771.27, 77,686.40 and 20,177.22

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Solution

The fourth proportional to 51,771.27, 77,686.40 and 20,177.22 is: 30,277.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,771.27 : 77,686.40 = 20,177.22 : x
  2. Step 2: Convert to fraction form
    51,771.27/77,686.40 = 20,177.22/x
  3. Step 3: Cross multiply
    51,771.27x = 77,686.40 × 20,177.22
  4. Step 4: Simplify right side
    51,771.27x = 1,567,495,634.25
  5. Step 5: Solve for x
    x = 1,567,495,634.25/51,771.27
  6. Step 6: Final answer
    x = 30,277.33

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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.