Home / 57,711.05-86,555.61-20,262.32

Finding the Fourth Proportional to 57,711.05, 86,555.61 and 20,262.32

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Solution

The fourth proportional to 57,711.05, 86,555.61 and 20,262.32 is: 30,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,711.05 : 86,555.61 = 20,262.32 : x
  2. Step 2: Convert to fraction form
    57,711.05/86,555.61 = 20,262.32/x
  3. Step 3: Cross multiply
    57,711.05x = 86,555.61 × 20,262.32
  4. Step 4: Simplify right side
    57,711.05x = 1,753,817,034.84
  5. Step 5: Solve for x
    x = 1,753,817,034.84/57,711.05
  6. Step 6: Final answer
    x = 30,389.63

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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.