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Finding the Fourth Proportional to 85,895.52, 118,536.84 and 47,655.78

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Solution

The fourth proportional to 85,895.52, 118,536.84 and 47,655.78 is: 65,765.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,895.52 : 118,536.84 = 47,655.78 : x
  2. Step 2: Convert to fraction form
    85,895.52/118,536.84 = 47,655.78/x
  3. Step 3: Cross multiply
    85,895.52x = 118,536.84 × 47,655.78
  4. Step 4: Simplify right side
    85,895.52x = 5,648,965,568.94
  5. Step 5: Solve for x
    x = 5,648,965,568.94/85,895.52
  6. Step 6: Final answer
    x = 65,765.54

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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.