Home / 83,171.76-114,744.48-51,285.30

Finding the Fourth Proportional to 83,171.76, 114,744.48 and 51,285.30

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Solution

The fourth proportional to 83,171.76, 114,744.48 and 51,285.30 is: 70,753.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,171.76 : 114,744.48 = 51,285.30 : x
  2. Step 2: Convert to fraction form
    83,171.76/114,744.48 = 51,285.30/x
  3. Step 3: Cross multiply
    83,171.76x = 114,744.48 × 51,285.30
  4. Step 4: Simplify right side
    83,171.76x = 5,884,705,080.14
  5. Step 5: Solve for x
    x = 5,884,705,080.14/83,171.76
  6. Step 6: Final answer
    x = 70,753.64

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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.