Home / 51,531.45-71,112.16-28,871.16

Finding the Fourth Proportional to 51,531.45, 71,112.16 and 28,871.16

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Solution

The fourth proportional to 51,531.45, 71,112.16 and 28,871.16 is: 39,841.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,531.45 : 71,112.16 = 28,871.16 : x
  2. Step 2: Convert to fraction form
    51,531.45/71,112.16 = 28,871.16/x
  3. Step 3: Cross multiply
    51,531.45x = 71,112.16 × 28,871.16
  4. Step 4: Simplify right side
    51,531.45x = 2,053,090,549.31
  5. Step 5: Solve for x
    x = 2,053,090,549.31/51,531.45
  6. Step 6: Final answer
    x = 39,841.51

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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.