Home / 83,285.28-124,727.72-47,638.56

Finding the Fourth Proportional to 83,285.28, 124,727.72 and 47,638.56

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Solution

The fourth proportional to 83,285.28, 124,727.72 and 47,638.56 is: 71,343.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,285.28 : 124,727.72 = 47,638.56 : x
  2. Step 2: Convert to fraction form
    83,285.28/124,727.72 = 47,638.56/x
  3. Step 3: Cross multiply
    83,285.28x = 124,727.72 × 47,638.56
  4. Step 4: Simplify right side
    83,285.28x = 5,941,848,972.88
  5. Step 5: Solve for x
    x = 5,941,848,972.88/83,285.28
  6. Step 6: Final answer
    x = 71,343.33

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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.