Home / 57,885.30-86,834.70-18,446.40

Finding the Fourth Proportional to 57,885.30, 86,834.70 and 18,446.40

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Solution

The fourth proportional to 57,885.30, 86,834.70 and 18,446.40 is: 27,671.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,885.30 : 86,834.70 = 18,446.40 : x
  2. Step 2: Convert to fraction form
    57,885.30/86,834.70 = 18,446.40/x
  3. Step 3: Cross multiply
    57,885.30x = 86,834.70 × 18,446.40
  4. Step 4: Simplify right side
    57,885.30x = 1,601,787,610.08
  5. Step 5: Solve for x
    x = 1,601,787,610.08/57,885.30
  6. Step 6: Final answer
    x = 27,671.75

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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.