Home / 75,169.20-103,732.16-41,178.36

Finding the Fourth Proportional to 75,169.20, 103,732.16 and 41,178.36

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Solution

The fourth proportional to 75,169.20, 103,732.16 and 41,178.36 is: 56,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,169.20 : 103,732.16 = 41,178.36 : x
  2. Step 2: Convert to fraction form
    75,169.20/103,732.16 = 41,178.36/x
  3. Step 3: Cross multiply
    75,169.20x = 103,732.16 × 41,178.36
  4. Step 4: Simplify right side
    75,169.20x = 4,271,520,228.06
  5. Step 5: Solve for x
    x = 4,271,520,228.06/75,169.20
  6. Step 6: Final answer
    x = 56,825.40

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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.