Home / 75,210.16-103,789.92-41,220.78

Finding the Fourth Proportional to 75,210.16, 103,789.92 and 41,220.78

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Solution

The fourth proportional to 75,210.16, 103,789.92 and 41,220.78 is: 56,884.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,210.16 : 103,789.92 = 41,220.78 : x
  2. Step 2: Convert to fraction form
    75,210.16/103,789.92 = 41,220.78/x
  3. Step 3: Cross multiply
    75,210.16x = 103,789.92 × 41,220.78
  4. Step 4: Simplify right side
    75,210.16x = 4,278,301,458.54
  5. Step 5: Solve for x
    x = 4,278,301,458.54/75,210.16
  6. Step 6: Final answer
    x = 56,884.62

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1.5x scale

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.