Home / 78,103.49-116,985.11-40,550.27

Finding the Fourth Proportional to 78,103.49, 116,985.11 and 40,550.27

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Solution

The fourth proportional to 78,103.49, 116,985.11 and 40,550.27 is: 60,737.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,103.49 : 116,985.11 = 40,550.27 : x
  2. Step 2: Convert to fraction form
    78,103.49/116,985.11 = 40,550.27/x
  3. Step 3: Cross multiply
    78,103.49x = 116,985.11 × 40,550.27
  4. Step 4: Simplify right side
    78,103.49x = 4,743,777,008.80
  5. Step 5: Solve for x
    x = 4,743,777,008.80/78,103.49
  6. Step 6: Final answer
    x = 60,737.07

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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.