Home / 55,996.38-77,275-30,845.88

Finding the Fourth Proportional to 55,996.38, 77,275 and 30,845.88

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Solution

The fourth proportional to 55,996.38, 77,275 and 30,845.88 is: 42,567.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,996.38 : 77,275 = 30,845.88 : x
  2. Step 2: Convert to fraction form
    55,996.38/77,275 = 30,845.88/x
  3. Step 3: Cross multiply
    55,996.38x = 77,275 × 30,845.88
  4. Step 4: Simplify right side
    55,996.38x = 2,383,615,377
  5. Step 5: Solve for x
    x = 2,383,615,377/55,996.38
  6. Step 6: Final answer
    x = 42,567.31

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1.5x scale

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.