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Finding the Fourth Proportional to 52,871.01, 72,964.04 and 28,998.69

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Solution

The fourth proportional to 52,871.01, 72,964.04 and 28,998.69 is: 40,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,871.01 : 72,964.04 = 28,998.69 : x
  2. Step 2: Convert to fraction form
    52,871.01/72,964.04 = 28,998.69/x
  3. Step 3: Cross multiply
    52,871.01x = 72,964.04 × 28,998.69
  4. Step 4: Simplify right side
    52,871.01x = 2,115,861,577.11
  5. Step 5: Solve for x
    x = 2,115,861,577.11/52,871.01
  6. Step 6: Final answer
    x = 40,019.31

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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.