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Finding the Fourth Proportional to 68,838.78, 95,002.40 and 38,626.98

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Solution

The fourth proportional to 68,838.78, 95,002.40 and 38,626.98 is: 53,307.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,838.78 : 95,002.40 = 38,626.98 : x
  2. Step 2: Convert to fraction form
    68,838.78/95,002.40 = 38,626.98/x
  3. Step 3: Cross multiply
    68,838.78x = 95,002.40 × 38,626.98
  4. Step 4: Simplify right side
    68,838.78x = 3,669,655,804.75
  5. Step 5: Solve for x
    x = 3,669,655,804.75/68,838.78
  6. Step 6: Final answer
    x = 53,307.97

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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.