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Finding the Fourth Proportional to 82,979.62, 114,512.07 and 45,256.30

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Solution

The fourth proportional to 82,979.62, 114,512.07 and 45,256.30 is: 62,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,979.62 : 114,512.07 = 45,256.30 : x
  2. Step 2: Convert to fraction form
    82,979.62/114,512.07 = 45,256.30/x
  3. Step 3: Cross multiply
    82,979.62x = 114,512.07 × 45,256.30
  4. Step 4: Simplify right side
    82,979.62x = 5,182,392,593.54
  5. Step 5: Solve for x
    x = 5,182,392,593.54/82,979.62
  6. Step 6: Final answer
    x = 62,453.80

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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.