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Finding the Fourth Proportional to 84,179.70, 116,164.36 and 45,938.28

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Solution

The fourth proportional to 84,179.70, 116,164.36 and 45,938.28 is: 63,392.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,179.70 : 116,164.36 = 45,938.28 : x
  2. Step 2: Convert to fraction form
    84,179.70/116,164.36 = 45,938.28/x
  3. Step 3: Cross multiply
    84,179.70x = 116,164.36 × 45,938.28
  4. Step 4: Simplify right side
    84,179.70x = 5,336,391,388.74
  5. Step 5: Solve for x
    x = 5,336,391,388.74/84,179.70
  6. Step 6: Final answer
    x = 63,392.85

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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.