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Finding the Fourth Proportional to 79,284.30, 109,412.28 and 43,474.92

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Solution

The fourth proportional to 79,284.30, 109,412.28 and 43,474.92 is: 59,995.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,284.30 : 109,412.28 = 43,474.92 : x
  2. Step 2: Convert to fraction form
    79,284.30/109,412.28 = 43,474.92/x
  3. Step 3: Cross multiply
    79,284.30x = 109,412.28 × 43,474.92
  4. Step 4: Simplify right side
    79,284.30x = 4,756,690,120.02
  5. Step 5: Solve for x
    x = 4,756,690,120.02/79,284.30
  6. Step 6: Final answer
    x = 59,995.36

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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.