Home / 87,072.60-120,165.45-48,834.42

Finding the Fourth Proportional to 87,072.60, 120,165.45 and 48,834.42

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Solution

The fourth proportional to 87,072.60, 120,165.45 and 48,834.42 is: 67,394.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,072.60 : 120,165.45 = 48,834.42 : x
  2. Step 2: Convert to fraction form
    87,072.60/120,165.45 = 48,834.42/x
  3. Step 3: Cross multiply
    87,072.60x = 120,165.45 × 48,834.42
  4. Step 4: Simplify right side
    87,072.60x = 5,868,209,421.04
  5. Step 5: Solve for x
    x = 5,868,209,421.04/87,072.60
  6. Step 6: Final answer
    x = 67,394.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.