Home / 51,890.14-71,610.15-30,687.58

Finding the Fourth Proportional to 51,890.14, 71,610.15 and 30,687.58

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Solution

The fourth proportional to 51,890.14, 71,610.15 and 30,687.58 is: 42,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,890.14 : 71,610.15 = 30,687.58 : x
  2. Step 2: Convert to fraction form
    51,890.14/71,610.15 = 30,687.58/x
  3. Step 3: Cross multiply
    51,890.14x = 71,610.15 × 30,687.58
  4. Step 4: Simplify right side
    51,890.14x = 2,197,542,206.94
  5. Step 5: Solve for x
    x = 2,197,542,206.94/51,890.14
  6. Step 6: Final answer
    x = 42,349.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.