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Finding the Fourth Proportional to 43,770, 60,381 and 27,630.12

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Solution

The fourth proportional to 43,770, 60,381 and 27,630.12 is: 38,115.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,770 : 60,381 = 27,630.12 : x
  2. Step 2: Convert to fraction form
    43,770/60,381 = 27,630.12/x
  3. Step 3: Cross multiply
    43,770x = 60,381 × 27,630.12
  4. Step 4: Simplify right side
    43,770x = 1,668,334,275.72
  5. Step 5: Solve for x
    x = 1,668,334,275.72/43,770
  6. Step 6: Final answer
    x = 38,115.93

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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.