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Finding the Fourth Proportional to 84,009.55, 126,036.60 and 36,604.30

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Solution

The fourth proportional to 84,009.55, 126,036.60 and 36,604.30 is: 54,916.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,009.55 : 126,036.60 = 36,604.30 : x
  2. Step 2: Convert to fraction form
    84,009.55/126,036.60 = 36,604.30/x
  3. Step 3: Cross multiply
    84,009.55x = 126,036.60 × 36,604.30
  4. Step 4: Simplify right side
    84,009.55x = 4,613,481,517.38
  5. Step 5: Solve for x
    x = 4,613,481,517.38/84,009.55
  6. Step 6: Final answer
    x = 54,916.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.