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Finding the Fourth Proportional to 85,370.52, 117,808.22 and 47,129.25

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Solution

The fourth proportional to 85,370.52, 117,808.22 and 47,129.25 is: 65,036.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,370.52 : 117,808.22 = 47,129.25 : x
  2. Step 2: Convert to fraction form
    85,370.52/117,808.22 = 47,129.25/x
  3. Step 3: Cross multiply
    85,370.52x = 117,808.22 × 47,129.25
  4. Step 4: Simplify right side
    85,370.52x = 5,552,212,581.22
  5. Step 5: Solve for x
    x = 5,552,212,581.22/85,370.52
  6. Step 6: Final answer
    x = 65,036.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.