Home / 51,950.60-77,964.30-20,808.20

Finding the Fourth Proportional to 51,950.60, 77,964.30 and 20,808.20

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Solution

The fourth proportional to 51,950.60, 77,964.30 and 20,808.20 is: 31,227.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,950.60 : 77,964.30 = 20,808.20 : x
  2. Step 2: Convert to fraction form
    51,950.60/77,964.30 = 20,808.20/x
  3. Step 3: Cross multiply
    51,950.60x = 77,964.30 × 20,808.20
  4. Step 4: Simplify right side
    51,950.60x = 1,622,296,747.26
  5. Step 5: Solve for x
    x = 1,622,296,747.26/51,950.60
  6. Step 6: Final answer
    x = 31,227.68

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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.