Home / 89,834.30-134,732.55-45,419.30

Finding the Fourth Proportional to 89,834.30, 134,732.55 and 45,419.30

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Solution

The fourth proportional to 89,834.30, 134,732.55 and 45,419.30 is: 68,119.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,834.30 : 134,732.55 = 45,419.30 : x
  2. Step 2: Convert to fraction form
    89,834.30/134,732.55 = 45,419.30/x
  3. Step 3: Cross multiply
    89,834.30x = 134,732.55 × 45,419.30
  4. Step 4: Simplify right side
    89,834.30x = 6,119,458,108.22
  5. Step 5: Solve for x
    x = 6,119,458,108.22/89,834.30
  6. Step 6: Final answer
    x = 68,119.39

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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.