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Finding the Fourth Proportional to 83,452.66, 115,164.79 and 49,477.79

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Solution

The fourth proportional to 83,452.66, 115,164.79 and 49,477.79 is: 68,279.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,452.66 : 115,164.79 = 49,477.79 : x
  2. Step 2: Convert to fraction form
    83,452.66/115,164.79 = 49,477.79/x
  3. Step 3: Cross multiply
    83,452.66x = 115,164.79 × 49,477.79
  4. Step 4: Simplify right side
    83,452.66x = 5,698,099,459.23
  5. Step 5: Solve for x
    x = 5,698,099,459.23/83,452.66
  6. Step 6: Final answer
    x = 68,279.42

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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.