Home / 57,867.84-86,758.08-20,411.52

Finding the Fourth Proportional to 57,867.84, 86,758.08 and 20,411.52

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Solution

The fourth proportional to 57,867.84, 86,758.08 and 20,411.52 is: 30,601.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,867.84 : 86,758.08 = 20,411.52 : x
  2. Step 2: Convert to fraction form
    57,867.84/86,758.08 = 20,411.52/x
  3. Step 3: Cross multiply
    57,867.84x = 86,758.08 × 20,411.52
  4. Step 4: Simplify right side
    57,867.84x = 1,770,864,285.08
  5. Step 5: Solve for x
    x = 1,770,864,285.08/57,867.84
  6. Step 6: Final answer
    x = 30,601.87

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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.