Home / 75,127.20-103,676.76-41,135.13

Finding the Fourth Proportional to 75,127.20, 103,676.76 and 41,135.13

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Solution

The fourth proportional to 75,127.20, 103,676.76 and 41,135.13 is: 56,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,127.20 : 103,676.76 = 41,135.13 : x
  2. Step 2: Convert to fraction form
    75,127.20/103,676.76 = 41,135.13/x
  3. Step 3: Cross multiply
    75,127.20x = 103,676.76 × 41,135.13
  4. Step 4: Simplify right side
    75,127.20x = 4,264,757,000.58
  5. Step 5: Solve for x
    x = 4,264,757,000.58/75,127.20
  6. Step 6: Final answer
    x = 56,767.15

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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.