Home / 75,378.27-113,062.53-28,629.93

Finding the Fourth Proportional to 75,378.27, 113,062.53 and 28,629.93

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Solution

The fourth proportional to 75,378.27, 113,062.53 and 28,629.93 is: 42,943.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,378.27 : 113,062.53 = 28,629.93 : x
  2. Step 2: Convert to fraction form
    75,378.27/113,062.53 = 28,629.93/x
  3. Step 3: Cross multiply
    75,378.27x = 113,062.53 × 28,629.93
  4. Step 4: Simplify right side
    75,378.27x = 3,236,972,319.52
  5. Step 5: Solve for x
    x = 3,236,972,319.52/75,378.27
  6. Step 6: Final answer
    x = 42,943.04

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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.