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Finding the Fourth Proportional to 78,880, 118,306.76 and 23,463.04

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Solution

The fourth proportional to 78,880, 118,306.76 and 23,463.04 is: 35,190.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,880 : 118,306.76 = 23,463.04 : x
  2. Step 2: Convert to fraction form
    78,880/118,306.76 = 23,463.04/x
  3. Step 3: Cross multiply
    78,880x = 118,306.76 × 23,463.04
  4. Step 4: Simplify right side
    78,880x = 2,775,836,242.15
  5. Step 5: Solve for x
    x = 2,775,836,242.15/78,880
  6. Step 6: Final answer
    x = 35,190.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.