Home / 75,109.85-103,651.68-46,815.50

Finding the Fourth Proportional to 75,109.85, 103,651.68 and 46,815.50

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Solution

The fourth proportional to 75,109.85, 103,651.68 and 46,815.50 is: 64,605.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,109.85 : 103,651.68 = 46,815.50 : x
  2. Step 2: Convert to fraction form
    75,109.85/103,651.68 = 46,815.50/x
  3. Step 3: Cross multiply
    75,109.85x = 103,651.68 × 46,815.50
  4. Step 4: Simplify right side
    75,109.85x = 4,852,505,225.04
  5. Step 5: Solve for x
    x = 4,852,505,225.04/75,109.85
  6. Step 6: Final answer
    x = 64,605.44

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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.