Home / 84,784.58-117,012-48,489.39

Finding the Fourth Proportional to 84,784.58, 117,012 and 48,489.39

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Solution

The fourth proportional to 84,784.58, 117,012 and 48,489.39 is: 66,920.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,784.58 : 117,012 = 48,489.39 : x
  2. Step 2: Convert to fraction form
    84,784.58/117,012 = 48,489.39/x
  3. Step 3: Cross multiply
    84,784.58x = 117,012 × 48,489.39
  4. Step 4: Simplify right side
    84,784.58x = 5,673,840,502.68
  5. Step 5: Solve for x
    x = 5,673,840,502.68/84,784.58
  6. Step 6: Final answer
    x = 66,920.67

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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.