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Finding the Fourth Proportional to 67,760.63, 93,512.10 and 40,897.89

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Solution

The fourth proportional to 67,760.63, 93,512.10 and 40,897.89 is: 56,440.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,760.63 : 93,512.10 = 40,897.89 : x
  2. Step 2: Convert to fraction form
    67,760.63/93,512.10 = 40,897.89/x
  3. Step 3: Cross multiply
    67,760.63x = 93,512.10 × 40,897.89
  4. Step 4: Simplify right side
    67,760.63x = 3,824,447,579.47
  5. Step 5: Solve for x
    x = 3,824,447,579.47/67,760.63
  6. Step 6: Final answer
    x = 56,440.56

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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.