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Finding the Fourth Proportional to 67,999.87, 102,017.11 and 39,943.65

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Solution

The fourth proportional to 67,999.87, 102,017.11 and 39,943.65 is: 59,925.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,999.87 : 102,017.11 = 39,943.65 : x
  2. Step 2: Convert to fraction form
    67,999.87/102,017.11 = 39,943.65/x
  3. Step 3: Cross multiply
    67,999.87x = 102,017.11 × 39,943.65
  4. Step 4: Simplify right side
    67,999.87x = 4,074,935,735.85
  5. Step 5: Solve for x
    x = 4,074,935,735.85/67,999.87
  6. Step 6: Final answer
    x = 59,925.64

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1.5x scale

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.