Home / 51,781.60-77,052.20-51,606.64

Finding the Fourth Proportional to 51,781.60, 77,052.20 and 51,606.64

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Solution

The fourth proportional to 51,781.60, 77,052.20 and 51,606.64 is: 76,791.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,781.60 : 77,052.20 = 51,606.64 : x
  2. Step 2: Convert to fraction form
    51,781.60/77,052.20 = 51,606.64/x
  3. Step 3: Cross multiply
    51,781.60x = 77,052.20 × 51,606.64
  4. Step 4: Simplify right side
    51,781.60x = 3,976,405,146.61
  5. Step 5: Solve for x
    x = 3,976,405,146.61/51,781.60
  6. Step 6: Final answer
    x = 76,791.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.