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Finding the Fourth Proportional to 73,775.89, 101,811.05 and 40,242.61

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Solution

The fourth proportional to 73,775.89, 101,811.05 and 40,242.61 is: 55,534.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,775.89 : 101,811.05 = 40,242.61 : x
  2. Step 2: Convert to fraction form
    73,775.89/101,811.05 = 40,242.61/x
  3. Step 3: Cross multiply
    73,775.89x = 101,811.05 × 40,242.61
  4. Step 4: Simplify right side
    73,775.89x = 4,097,142,378.84
  5. Step 5: Solve for x
    x = 4,097,142,378.84/73,775.89
  6. Step 6: Final answer
    x = 55,534.98

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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.