Home / 57,283.47-85,890.58-25,687.80

Finding the Fourth Proportional to 57,283.47, 85,890.58 and 25,687.80

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Solution

The fourth proportional to 57,283.47, 85,890.58 and 25,687.80 is: 38,516.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,283.47 : 85,890.58 = 25,687.80 : x
  2. Step 2: Convert to fraction form
    57,283.47/85,890.58 = 25,687.80/x
  3. Step 3: Cross multiply
    57,283.47x = 85,890.58 × 25,687.80
  4. Step 4: Simplify right side
    57,283.47x = 2,206,339,976.70
  5. Step 5: Solve for x
    x = 2,206,339,976.70/57,283.47
  6. Step 6: Final answer
    x = 38,516.17

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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.