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Finding the Fourth Proportional to 85,259.33, 117,658.11 and 47,017.93

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Solution

The fourth proportional to 85,259.33, 117,658.11 and 47,017.93 is: 64,884.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,259.33 : 117,658.11 = 47,017.93 : x
  2. Step 2: Convert to fraction form
    85,259.33/117,658.11 = 47,017.93/x
  3. Step 3: Cross multiply
    85,259.33x = 117,658.11 × 47,017.93
  4. Step 4: Simplify right side
    85,259.33x = 5,532,040,779.91
  5. Step 5: Solve for x
    x = 5,532,040,779.91/85,259.33
  6. Step 6: Final answer
    x = 64,884.87

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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.