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Finding the Fourth Proportional to 52,489, 72,437.70 and 30,134.44

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Solution

The fourth proportional to 52,489, 72,437.70 and 30,134.44 is: 41,587.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,489 : 72,437.70 = 30,134.44 : x
  2. Step 2: Convert to fraction form
    52,489/72,437.70 = 30,134.44/x
  3. Step 3: Cross multiply
    52,489x = 72,437.70 × 30,134.44
  4. Step 4: Simplify right side
    52,489x = 2,182,869,524.39
  5. Step 5: Solve for x
    x = 2,182,869,524.39/52,489
  6. Step 6: Final answer
    x = 41,587.18

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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.