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Finding the Fourth Proportional to 40,662.06, 60,978.10 and 14,000.46

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Solution

The fourth proportional to 40,662.06, 60,978.10 and 14,000.46 is: 20,995.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,662.06 : 60,978.10 = 14,000.46 : x
  2. Step 2: Convert to fraction form
    40,662.06/60,978.10 = 14,000.46/x
  3. Step 3: Cross multiply
    40,662.06x = 60,978.10 × 14,000.46
  4. Step 4: Simplify right side
    40,662.06x = 853,721,449.93
  5. Step 5: Solve for x
    x = 853,721,449.93/40,662.06
  6. Step 6: Final answer
    x = 20,995.53

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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.