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Finding the Fourth Proportional to 68,341.68, 94,311.63 and 40,047.39

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Solution

The fourth proportional to 68,341.68, 94,311.63 and 40,047.39 is: 55,265.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,341.68 : 94,311.63 = 40,047.39 : x
  2. Step 2: Convert to fraction form
    68,341.68/94,311.63 = 40,047.39/x
  3. Step 3: Cross multiply
    68,341.68x = 94,311.63 × 40,047.39
  4. Step 4: Simplify right side
    68,341.68x = 3,776,934,628.15
  5. Step 5: Solve for x
    x = 3,776,934,628.15/68,341.68
  6. Step 6: Final answer
    x = 55,265.46

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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.