Home / 51,489.30-71,061.22-31,357.98

Finding the Fourth Proportional to 51,489.30, 71,061.22 and 31,357.98

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Solution

The fourth proportional to 51,489.30, 71,061.22 and 31,357.98 is: 43,277.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,489.30 : 71,061.22 = 31,357.98 : x
  2. Step 2: Convert to fraction form
    51,489.30/71,061.22 = 31,357.98/x
  3. Step 3: Cross multiply
    51,489.30x = 71,061.22 × 31,357.98
  4. Step 4: Simplify right side
    51,489.30x = 2,228,336,315.54
  5. Step 5: Solve for x
    x = 2,228,336,315.54/51,489.30
  6. Step 6: Final answer
    x = 43,277.66

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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.