Home / 280,623.52-420,938.92-93,635.02

Finding the Fourth Proportional to 280,623.52, 420,938.92 and 93,635.02

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Solution

The fourth proportional to 280,623.52, 420,938.92 and 93,635.02 is: 140,453.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,623.52 : 420,938.92 = 93,635.02 : x
  2. Step 2: Convert to fraction form
    280,623.52/420,938.92 = 93,635.02/x
  3. Step 3: Cross multiply
    280,623.52x = 420,938.92 × 93,635.02
  4. Step 4: Simplify right side
    280,623.52x = 39,414,624,836.20
  5. Step 5: Solve for x
    x = 39,414,624,836.20/280,623.52
  6. Step 6: Final answer
    x = 140,453.75

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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.