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Finding the Fourth Proportional to 85,791.87, 118,289.84 and 73,834.65

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Solution

The fourth proportional to 85,791.87, 118,289.84 and 73,834.65 is: 101,803.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,791.87 : 118,289.84 = 73,834.65 : x
  2. Step 2: Convert to fraction form
    85,791.87/118,289.84 = 73,834.65/x
  3. Step 3: Cross multiply
    85,791.87x = 118,289.84 × 73,834.65
  4. Step 4: Simplify right side
    85,791.87x = 8,733,888,565.78
  5. Step 5: Solve for x
    x = 8,733,888,565.78/85,791.87
  6. Step 6: Final answer
    x = 101,803.22

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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.