Home / 75,126.80-103,675.20-41,135.60

Finding the Fourth Proportional to 75,126.80, 103,675.20 and 41,135.60

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Solution

The fourth proportional to 75,126.80, 103,675.20 and 41,135.60 is: 56,767.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,126.80 : 103,675.20 = 41,135.60 : x
  2. Step 2: Convert to fraction form
    75,126.80/103,675.20 = 41,135.60/x
  3. Step 3: Cross multiply
    75,126.80x = 103,675.20 × 41,135.60
  4. Step 4: Simplify right side
    75,126.80x = 4,264,741,557.12
  5. Step 5: Solve for x
    x = 4,264,741,557.12/75,126.80
  6. Step 6: Final answer
    x = 56,767.25

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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.