Home / 51,605.76-71,212.32-28,943.04

Finding the Fourth Proportional to 51,605.76, 71,212.32 and 28,943.04

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Solution

The fourth proportional to 51,605.76, 71,212.32 and 28,943.04 is: 39,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,605.76 : 71,212.32 = 28,943.04 : x
  2. Step 2: Convert to fraction form
    51,605.76/71,212.32 = 28,943.04/x
  3. Step 3: Cross multiply
    51,605.76x = 71,212.32 × 28,943.04
  4. Step 4: Simplify right side
    51,605.76x = 2,061,101,026.25
  5. Step 5: Solve for x
    x = 2,061,101,026.25/51,605.76
  6. Step 6: Final answer
    x = 39,939.36

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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.