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Finding the Fourth Proportional to 58,612.36, 87,965.03 and 30,540.39

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Solution

The fourth proportional to 58,612.36, 87,965.03 and 30,540.39 is: 45,834.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,612.36 : 87,965.03 = 30,540.39 : x
  2. Step 2: Convert to fraction form
    58,612.36/87,965.03 = 30,540.39/x
  3. Step 3: Cross multiply
    58,612.36x = 87,965.03 × 30,540.39
  4. Step 4: Simplify right side
    58,612.36x = 2,686,486,322.56
  5. Step 5: Solve for x
    x = 2,686,486,322.56/58,612.36
  6. Step 6: Final answer
    x = 45,834.81

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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.