Home / 51,530.22-71,111.05-28,868.81

Finding the Fourth Proportional to 51,530.22, 71,111.05 and 28,868.81

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Solution

The fourth proportional to 51,530.22, 71,111.05 and 28,868.81 is: 39,838.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,530.22 : 71,111.05 = 28,868.81 : x
  2. Step 2: Convert to fraction form
    51,530.22/71,111.05 = 28,868.81/x
  3. Step 3: Cross multiply
    51,530.22x = 71,111.05 × 28,868.81
  4. Step 4: Simplify right side
    51,530.22x = 2,052,890,963.62
  5. Step 5: Solve for x
    x = 2,052,890,963.62/51,530.22
  6. Step 6: Final answer
    x = 39,838.58

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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.