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Finding the Fourth Proportional to 52,903.56, 79,353.18 and 21,738

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Solution

The fourth proportional to 52,903.56, 79,353.18 and 21,738 is: 32,606.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,903.56 : 79,353.18 = 21,738 : x
  2. Step 2: Convert to fraction form
    52,903.56/79,353.18 = 21,738/x
  3. Step 3: Cross multiply
    52,903.56x = 79,353.18 × 21,738
  4. Step 4: Simplify right side
    52,903.56x = 1,724,979,426.84
  5. Step 5: Solve for x
    x = 1,724,979,426.84/52,903.56
  6. Step 6: Final answer
    x = 32,606.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.