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Finding the Fourth Proportional to 68,794.34, 94,937.21 and 40,113.21

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Solution

The fourth proportional to 68,794.34, 94,937.21 and 40,113.21 is: 55,356.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,794.34 : 94,937.21 = 40,113.21 : x
  2. Step 2: Convert to fraction form
    68,794.34/94,937.21 = 40,113.21/x
  3. Step 3: Cross multiply
    68,794.34x = 94,937.21 × 40,113.21
  4. Step 4: Simplify right side
    68,794.34x = 3,808,236,040.98
  5. Step 5: Solve for x
    x = 3,808,236,040.98/68,794.34
  6. Step 6: Final answer
    x = 55,356.83

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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.