Home / 83,885.28-125,905.68-42,361.44

Finding the Fourth Proportional to 83,885.28, 125,905.68 and 42,361.44

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Solution

The fourth proportional to 83,885.28, 125,905.68 and 42,361.44 is: 63,581.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,885.28 : 125,905.68 = 42,361.44 : x
  2. Step 2: Convert to fraction form
    83,885.28/125,905.68 = 42,361.44/x
  3. Step 3: Cross multiply
    83,885.28x = 125,905.68 × 42,361.44
  4. Step 4: Simplify right side
    83,885.28x = 5,333,545,908.98
  5. Step 5: Solve for x
    x = 5,333,545,908.98/83,885.28
  6. Step 6: Final answer
    x = 63,581.43

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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.