Home / 57,982.16-86,950.96-20,535.32

Finding the Fourth Proportional to 57,982.16, 86,950.96 and 20,535.32

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Solution

The fourth proportional to 57,982.16, 86,950.96 and 20,535.32 is: 30,795.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,982.16 : 86,950.96 = 20,535.32 : x
  2. Step 2: Convert to fraction form
    57,982.16/86,950.96 = 20,535.32/x
  3. Step 3: Cross multiply
    57,982.16x = 86,950.96 × 20,535.32
  4. Step 4: Simplify right side
    57,982.16x = 1,785,565,787.91
  5. Step 5: Solve for x
    x = 1,785,565,787.91/57,982.16
  6. Step 6: Final answer
    x = 30,795.09

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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.