Home / 51,801.66-77,690.93-20,212.56

Finding the Fourth Proportional to 51,801.66, 77,690.93 and 20,212.56

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Solution

The fourth proportional to 51,801.66, 77,690.93 and 20,212.56 is: 30,314.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,801.66 : 77,690.93 = 20,212.56 : x
  2. Step 2: Convert to fraction form
    51,801.66/77,690.93 = 20,212.56/x
  3. Step 3: Cross multiply
    51,801.66x = 77,690.93 × 20,212.56
  4. Step 4: Simplify right side
    51,801.66x = 1,570,332,483.02
  5. Step 5: Solve for x
    x = 1,570,332,483.02/51,801.66
  6. Step 6: Final answer
    x = 30,314.33

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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.