Home / 57,721.86-86,583.46-20,283.02

Finding the Fourth Proportional to 57,721.86, 86,583.46 and 20,283.02

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Solution

The fourth proportional to 57,721.86, 86,583.46 and 20,283.02 is: 30,424.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,721.86 : 86,583.46 = 20,283.02 : x
  2. Step 2: Convert to fraction form
    57,721.86/86,583.46 = 20,283.02/x
  3. Step 3: Cross multiply
    57,721.86x = 86,583.46 × 20,283.02
  4. Step 4: Simplify right side
    57,721.86x = 1,756,174,050.85
  5. Step 5: Solve for x
    x = 1,756,174,050.85/57,721.86
  6. Step 6: Final answer
    x = 30,424.77

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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.