Home / 75,109.03-103,661.84-42,843.49

Finding the Fourth Proportional to 75,109.03, 103,661.84 and 42,843.49

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Solution

The fourth proportional to 75,109.03, 103,661.84 and 42,843.49 is: 59,130.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,109.03 : 103,661.84 = 42,843.49 : x
  2. Step 2: Convert to fraction form
    75,109.03/103,661.84 = 42,843.49/x
  3. Step 3: Cross multiply
    75,109.03x = 103,661.84 × 42,843.49
  4. Step 4: Simplify right side
    75,109.03x = 4,441,235,005.42
  5. Step 5: Solve for x
    x = 4,441,235,005.42/75,109.03
  6. Step 6: Final answer
    x = 59,130.51

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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.