Home / 75,709.64-113,552.09-53,455.55

Finding the Fourth Proportional to 75,709.64, 113,552.09 and 53,455.55

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Solution

The fourth proportional to 75,709.64, 113,552.09 and 53,455.55 is: 80,174.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,709.64 : 113,552.09 = 53,455.55 : x
  2. Step 2: Convert to fraction form
    75,709.64/113,552.09 = 53,455.55/x
  3. Step 3: Cross multiply
    75,709.64x = 113,552.09 × 53,455.55
  4. Step 4: Simplify right side
    75,709.64x = 6,069,988,589.56
  5. Step 5: Solve for x
    x = 6,069,988,589.56/75,709.64
  6. Step 6: Final answer
    x = 80,174.59

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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.