Home / 51,871.81-71,584.50-29,211.61

Finding the Fourth Proportional to 51,871.81, 71,584.50 and 29,211.61

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Solution

The fourth proportional to 51,871.81, 71,584.50 and 29,211.61 is: 40,312.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,871.81 : 71,584.50 = 29,211.61 : x
  2. Step 2: Convert to fraction form
    51,871.81/71,584.50 = 29,211.61/x
  3. Step 3: Cross multiply
    51,871.81x = 71,584.50 × 29,211.61
  4. Step 4: Simplify right side
    51,871.81x = 2,091,098,496.05
  5. Step 5: Solve for x
    x = 2,091,098,496.05/51,871.81
  6. Step 6: Final answer
    x = 40,312.81

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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.