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Finding the Fourth Proportional to 85,548.47, 118,053.50 and 47,305.53

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Solution

The fourth proportional to 85,548.47, 118,053.50 and 47,305.53 is: 65,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,548.47 : 118,053.50 = 47,305.53 : x
  2. Step 2: Convert to fraction form
    85,548.47/118,053.50 = 47,305.53/x
  3. Step 3: Cross multiply
    85,548.47x = 118,053.50 × 47,305.53
  4. Step 4: Simplify right side
    85,548.47x = 5,584,583,149.33
  5. Step 5: Solve for x
    x = 5,584,583,149.33/85,548.47
  6. Step 6: Final answer
    x = 65,279.76

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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.