Home / 75,840.89-113,669.10-53,660.66

Finding the Fourth Proportional to 75,840.89, 113,669.10 and 53,660.66

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Solution

The fourth proportional to 75,840.89, 113,669.10 and 53,660.66 is: 80,425.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,840.89 : 113,669.10 = 53,660.66 : x
  2. Step 2: Convert to fraction form
    75,840.89/113,669.10 = 53,660.66/x
  3. Step 3: Cross multiply
    75,840.89x = 113,669.10 × 53,660.66
  4. Step 4: Simplify right side
    75,840.89x = 6,099,558,359.26
  5. Step 5: Solve for x
    x = 6,099,558,359.26/75,840.89
  6. Step 6: Final answer
    x = 80,425.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.