Home / 109,879.59-164,819.40-39,742.50

Finding the Fourth Proportional to 109,879.59, 164,819.40 and 39,742.50

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Solution

The fourth proportional to 109,879.59, 164,819.40 and 39,742.50 is: 59,613.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,879.59 : 164,819.40 = 39,742.50 : x
  2. Step 2: Convert to fraction form
    109,879.59/164,819.40 = 39,742.50/x
  3. Step 3: Cross multiply
    109,879.59x = 164,819.40 × 39,742.50
  4. Step 4: Simplify right side
    109,879.59x = 6,550,335,004.50
  5. Step 5: Solve for x
    x = 6,550,335,004.50/109,879.59
  6. Step 6: Final answer
    x = 59,613.76

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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.