Home / 89,914.67-134,874.90-47,209.28

Finding the Fourth Proportional to 89,914.67, 134,874.90 and 47,209.28

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Solution

The fourth proportional to 89,914.67, 134,874.90 and 47,209.28 is: 70,815.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,914.67 : 134,874.90 = 47,209.28 : x
  2. Step 2: Convert to fraction form
    89,914.67/134,874.90 = 47,209.28/x
  3. Step 3: Cross multiply
    89,914.67x = 134,874.90 × 47,209.28
  4. Step 4: Simplify right side
    89,914.67x = 6,367,347,433.29
  5. Step 5: Solve for x
    x = 6,367,347,433.29/89,914.67
  6. Step 6: Final answer
    x = 70,815.44

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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.