Home / 85,350.34-117,781.82-47,107.65

Finding the Fourth Proportional to 85,350.34, 117,781.82 and 47,107.65

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Solution

The fourth proportional to 85,350.34, 117,781.82 and 47,107.65 is: 65,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,350.34 : 117,781.82 = 47,107.65 : x
  2. Step 2: Convert to fraction form
    85,350.34/117,781.82 = 47,107.65/x
  3. Step 3: Cross multiply
    85,350.34x = 117,781.82 × 47,107.65
  4. Step 4: Simplify right side
    85,350.34x = 5,548,424,752.92
  5. Step 5: Solve for x
    x = 5,548,424,752.92/85,350.34
  6. Step 6: Final answer
    x = 65,007.65

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1.5x scale

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.