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Finding the Fourth Proportional to 79,292.96, 109,429.28 and 52,388.30

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Solution

The fourth proportional to 79,292.96, 109,429.28 and 52,388.30 is: 72,299.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,292.96 : 109,429.28 = 52,388.30 : x
  2. Step 2: Convert to fraction form
    79,292.96/109,429.28 = 52,388.30/x
  3. Step 3: Cross multiply
    79,292.96x = 109,429.28 × 52,388.30
  4. Step 4: Simplify right side
    79,292.96x = 5,732,814,157.51
  5. Step 5: Solve for x
    x = 5,732,814,157.51/79,292.96
  6. Step 6: Final answer
    x = 72,299.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.