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Finding the Fourth Proportional to 85,290.56, 127,914.96 and 37,879.52

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Solution

The fourth proportional to 85,290.56, 127,914.96 and 37,879.52 is: 56,810.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,290.56 : 127,914.96 = 37,879.52 : x
  2. Step 2: Convert to fraction form
    85,290.56/127,914.96 = 37,879.52/x
  3. Step 3: Cross multiply
    85,290.56x = 127,914.96 × 37,879.52
  4. Step 4: Simplify right side
    85,290.56x = 4,845,357,285.62
  5. Step 5: Solve for x
    x = 4,845,357,285.62/85,290.56
  6. Step 6: Final answer
    x = 56,810.01

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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.