Home / 85,537.68-118,045.80-47,811.96

Finding the Fourth Proportional to 85,537.68, 118,045.80 and 47,811.96

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Solution

The fourth proportional to 85,537.68, 118,045.80 and 47,811.96 is: 65,982.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,537.68 : 118,045.80 = 47,811.96 : x
  2. Step 2: Convert to fraction form
    85,537.68/118,045.80 = 47,811.96/x
  3. Step 3: Cross multiply
    85,537.68x = 118,045.80 × 47,811.96
  4. Step 4: Simplify right side
    85,537.68x = 5,644,001,067.77
  5. Step 5: Solve for x
    x = 5,644,001,067.77/85,537.68
  6. Step 6: Final answer
    x = 65,982.63

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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.