Home / 75,385.28-103,997.58-48,518.12

Finding the Fourth Proportional to 75,385.28, 103,997.58 and 48,518.12

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Solution

The fourth proportional to 75,385.28, 103,997.58 and 48,518.12 is: 66,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,385.28 : 103,997.58 = 48,518.12 : x
  2. Step 2: Convert to fraction form
    75,385.28/103,997.58 = 48,518.12/x
  3. Step 3: Cross multiply
    75,385.28x = 103,997.58 × 48,518.12
  4. Step 4: Simplify right side
    75,385.28x = 5,045,767,066.15
  5. Step 5: Solve for x
    x = 5,045,767,066.15/75,385.28
  6. Step 6: Final answer
    x = 66,933.05

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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.