Home / 78,537.18-117,763.84-41,006.42

Finding the Fourth Proportional to 78,537.18, 117,763.84 and 41,006.42

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Solution

The fourth proportional to 78,537.18, 117,763.84 and 41,006.42 is: 61,487.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,537.18 : 117,763.84 = 41,006.42 : x
  2. Step 2: Convert to fraction form
    78,537.18/117,763.84 = 41,006.42/x
  3. Step 3: Cross multiply
    78,537.18x = 117,763.84 × 41,006.42
  4. Step 4: Simplify right side
    78,537.18x = 4,829,073,483.85
  5. Step 5: Solve for x
    x = 4,829,073,483.85/78,537.18
  6. Step 6: Final answer
    x = 61,487.74

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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.