Home / 84,459.20-126,834.60-45,093.20

Finding the Fourth Proportional to 84,459.20, 126,834.60 and 45,093.20

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Solution

The fourth proportional to 84,459.20, 126,834.60 and 45,093.20 is: 67,717.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,459.20 : 126,834.60 = 45,093.20 : x
  2. Step 2: Convert to fraction form
    84,459.20/126,834.60 = 45,093.20/x
  3. Step 3: Cross multiply
    84,459.20x = 126,834.60 × 45,093.20
  4. Step 4: Simplify right side
    84,459.20x = 5,719,377,984.72
  5. Step 5: Solve for x
    x = 5,719,377,984.72/84,459.20
  6. Step 6: Final answer
    x = 67,717.64

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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.