Home / 52,921.14-79,361.64-21,320.48

Finding the Fourth Proportional to 52,921.14, 79,361.64 and 21,320.48

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Solution

The fourth proportional to 52,921.14, 79,361.64 and 21,320.48 is: 31,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,921.14 : 79,361.64 = 21,320.48 : x
  2. Step 2: Convert to fraction form
    52,921.14/79,361.64 = 21,320.48/x
  3. Step 3: Cross multiply
    52,921.14x = 79,361.64 × 21,320.48
  4. Step 4: Simplify right side
    52,921.14x = 1,692,027,861.58
  5. Step 5: Solve for x
    x = 1,692,027,861.58/52,921.14
  6. Step 6: Final answer
    x = 31,972.63

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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.