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Finding the Fourth Proportional to 79,783.80, 110,102.41 and 43,975.18

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Solution

The fourth proportional to 79,783.80, 110,102.41 and 43,975.18 is: 60,686.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,783.80 : 110,102.41 = 43,975.18 : x
  2. Step 2: Convert to fraction form
    79,783.80/110,102.41 = 43,975.18/x
  3. Step 3: Cross multiply
    79,783.80x = 110,102.41 × 43,975.18
  4. Step 4: Simplify right side
    79,783.80x = 4,841,773,243.42
  5. Step 5: Solve for x
    x = 4,841,773,243.42/79,783.80
  6. Step 6: Final answer
    x = 60,686.17

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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.