Home / 51,101.30-76,655.77-13,660.51

Finding the Fourth Proportional to 51,101.30, 76,655.77 and 13,660.51

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Solution

The fourth proportional to 51,101.30, 76,655.77 and 13,660.51 is: 20,491.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,101.30 : 76,655.77 = 13,660.51 : x
  2. Step 2: Convert to fraction form
    51,101.30/76,655.77 = 13,660.51/x
  3. Step 3: Cross multiply
    51,101.30x = 76,655.77 × 13,660.51
  4. Step 4: Simplify right side
    51,101.30x = 1,047,156,912.64
  5. Step 5: Solve for x
    x = 1,047,156,912.64/51,101.30
  6. Step 6: Final answer
    x = 20,491.79

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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.