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Finding the Fourth Proportional to 79,669, 109,950.54 and 43,866.28

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Solution

The fourth proportional to 79,669, 109,950.54 and 43,866.28 is: 60,539.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,669 : 109,950.54 = 43,866.28 : x
  2. Step 2: Convert to fraction form
    79,669/109,950.54 = 43,866.28/x
  3. Step 3: Cross multiply
    79,669x = 109,950.54 × 43,866.28
  4. Step 4: Simplify right side
    79,669x = 4,823,121,173.79
  5. Step 5: Solve for x
    x = 4,823,121,173.79/79,669
  6. Step 6: Final answer
    x = 60,539.50

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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.