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Finding the Fourth Proportional to 79,277.81, 109,402.54 and 43,467.73

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Solution

The fourth proportional to 79,277.81, 109,402.54 and 43,467.73 is: 59,985.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,277.81 : 109,402.54 = 43,467.73 : x
  2. Step 2: Convert to fraction form
    79,277.81/109,402.54 = 43,467.73/x
  3. Step 3: Cross multiply
    79,277.81x = 109,402.54 × 43,467.73
  4. Step 4: Simplify right side
    79,277.81x = 4,755,479,687.86
  5. Step 5: Solve for x
    x = 4,755,479,687.86/79,277.81
  6. Step 6: Final answer
    x = 59,985.01

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1.5x scale

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.