Home / 75,209.16-103,788.54-41,219.78

Finding the Fourth Proportional to 75,209.16, 103,788.54 and 41,219.78

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Solution

The fourth proportional to 75,209.16, 103,788.54 and 41,219.78 is: 56,883.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,209.16 : 103,788.54 = 41,219.78 : x
  2. Step 2: Convert to fraction form
    75,209.16/103,788.54 = 41,219.78/x
  3. Step 3: Cross multiply
    75,209.16x = 103,788.54 × 41,219.78
  4. Step 4: Simplify right side
    75,209.16x = 4,278,140,785.32
  5. Step 5: Solve for x
    x = 4,278,140,785.32/75,209.16
  6. Step 6: Final answer
    x = 56,883.24

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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.