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Finding the Fourth Proportional to 79,783.78, 110,101.07 and 43,973.81

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Solution

The fourth proportional to 79,783.78, 110,101.07 and 43,973.81 is: 60,683.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,783.78 : 110,101.07 = 43,973.81 : x
  2. Step 2: Convert to fraction form
    79,783.78/110,101.07 = 43,973.81/x
  3. Step 3: Cross multiply
    79,783.78x = 110,101.07 × 43,973.81
  4. Step 4: Simplify right side
    79,783.78x = 4,841,563,313.11
  5. Step 5: Solve for x
    x = 4,841,563,313.11/79,783.78
  6. Step 6: Final answer
    x = 60,683.55

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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.