Home / 51,890.81-71,614.76-31,761.09

Finding the Fourth Proportional to 51,890.81, 71,614.76 and 31,761.09

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Solution

The fourth proportional to 51,890.81, 71,614.76 and 31,761.09 is: 43,833.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,890.81 : 71,614.76 = 31,761.09 : x
  2. Step 2: Convert to fraction form
    51,890.81/71,614.76 = 31,761.09/x
  3. Step 3: Cross multiply
    51,890.81x = 71,614.76 × 31,761.09
  4. Step 4: Simplify right side
    51,890.81x = 2,274,562,678.88
  5. Step 5: Solve for x
    x = 2,274,562,678.88/51,890.81
  6. Step 6: Final answer
    x = 43,833.64

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1.5x scale

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.