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Finding the Fourth Proportional to 68,348.39, 94,380.11 and 42,898.86

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Solution

The fourth proportional to 68,348.39, 94,380.11 and 42,898.86 is: 59,237.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,348.39 : 94,380.11 = 42,898.86 : x
  2. Step 2: Convert to fraction form
    68,348.39/94,380.11 = 42,898.86/x
  3. Step 3: Cross multiply
    68,348.39x = 94,380.11 × 42,898.86
  4. Step 4: Simplify right side
    68,348.39x = 4,048,798,911.18
  5. Step 5: Solve for x
    x = 4,048,798,911.18/68,348.39
  6. Step 6: Final answer
    x = 59,237.67

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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.