Home / 87,683.08-131,567.82-54,394.60

Finding the Fourth Proportional to 87,683.08, 131,567.82 and 54,394.60

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Solution

The fourth proportional to 87,683.08, 131,567.82 and 54,394.60 is: 81,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,683.08 : 131,567.82 = 54,394.60 : x
  2. Step 2: Convert to fraction form
    87,683.08/131,567.82 = 54,394.60/x
  3. Step 3: Cross multiply
    87,683.08x = 131,567.82 × 54,394.60
  4. Step 4: Simplify right side
    87,683.08x = 7,156,578,941.77
  5. Step 5: Solve for x
    x = 7,156,578,941.77/87,683.08
  6. Step 6: Final answer
    x = 81,618.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.