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Finding the Fourth Proportional to 85,476.60, 117,957.60 and 47,750.85

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Solution

The fourth proportional to 85,476.60, 117,957.60 and 47,750.85 is: 65,896.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,476.60 : 117,957.60 = 47,750.85 : x
  2. Step 2: Convert to fraction form
    85,476.60/117,957.60 = 47,750.85/x
  3. Step 3: Cross multiply
    85,476.60x = 117,957.60 × 47,750.85
  4. Step 4: Simplify right side
    85,476.60x = 5,632,575,663.96
  5. Step 5: Solve for x
    x = 5,632,575,663.96/85,476.60
  6. Step 6: Final answer
    x = 65,896.11

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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.