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Finding the Fourth Proportional to 85,120.98, 127,676.67 and 37,722.42

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Solution

The fourth proportional to 85,120.98, 127,676.67 and 37,722.42 is: 56,581.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,120.98 : 127,676.67 = 37,722.42 : x
  2. Step 2: Convert to fraction form
    85,120.98/127,676.67 = 37,722.42/x
  3. Step 3: Cross multiply
    85,120.98x = 127,676.67 × 37,722.42
  4. Step 4: Simplify right side
    85,120.98x = 4,816,272,969.94
  5. Step 5: Solve for x
    x = 4,816,272,969.94/85,120.98
  6. Step 6: Final answer
    x = 56,581.50

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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.