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Finding the Fourth Proportional to 68,706.16, 94,792.98 and 38,487.40

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Solution

The fourth proportional to 68,706.16, 94,792.98 and 38,487.40 is: 53,100.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,706.16 : 94,792.98 = 38,487.40 : x
  2. Step 2: Convert to fraction form
    68,706.16/94,792.98 = 38,487.40/x
  3. Step 3: Cross multiply
    68,706.16x = 94,792.98 × 38,487.40
  4. Step 4: Simplify right side
    68,706.16x = 3,648,335,338.45
  5. Step 5: Solve for x
    x = 3,648,335,338.45/68,706.16
  6. Step 6: Final answer
    x = 53,100.56

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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.