Home / 51,869.10-71,706.60-51,395.28

Finding the Fourth Proportional to 51,869.10, 71,706.60 and 51,395.28

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Solution

The fourth proportional to 51,869.10, 71,706.60 and 51,395.28 is: 71,051.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,869.10 : 71,706.60 = 51,395.28 : x
  2. Step 2: Convert to fraction form
    51,869.10/71,706.60 = 51,395.28/x
  3. Step 3: Cross multiply
    51,869.10x = 71,706.60 × 51,395.28
  4. Step 4: Simplify right side
    51,869.10x = 3,685,380,784.85
  5. Step 5: Solve for x
    x = 3,685,380,784.85/51,869.10
  6. Step 6: Final answer
    x = 71,051.57

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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.