Home / 75,175.38-103,682.16-48,320.64

Finding the Fourth Proportional to 75,175.38, 103,682.16 and 48,320.64

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Solution

The fourth proportional to 75,175.38, 103,682.16 and 48,320.64 is: 66,644.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,175.38 : 103,682.16 = 48,320.64 : x
  2. Step 2: Convert to fraction form
    75,175.38/103,682.16 = 48,320.64/x
  3. Step 3: Cross multiply
    75,175.38x = 103,682.16 × 48,320.64
  4. Step 4: Simplify right side
    75,175.38x = 5,009,988,327.78
  5. Step 5: Solve for x
    x = 5,009,988,327.78/75,175.38
  6. Step 6: Final answer
    x = 66,644.00

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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.