Home / 75,109.16-103,662.24-42,843.92

Finding the Fourth Proportional to 75,109.16, 103,662.24 and 42,843.92

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Solution

The fourth proportional to 75,109.16, 103,662.24 and 42,843.92 is: 59,131.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,109.16 : 103,662.24 = 42,843.92 : x
  2. Step 2: Convert to fraction form
    75,109.16/103,662.24 = 42,843.92/x
  3. Step 3: Cross multiply
    75,109.16x = 103,662.24 × 42,843.92
  4. Step 4: Simplify right side
    75,109.16x = 4,441,296,717.58
  5. Step 5: Solve for x
    x = 4,441,296,717.58/75,109.16
  6. Step 6: Final answer
    x = 59,131.23

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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.