Home / 75,459.88-113,209.28-28,687.24

Finding the Fourth Proportional to 75,459.88, 113,209.28 and 28,687.24

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Solution

The fourth proportional to 75,459.88, 113,209.28 and 28,687.24 is: 43,038.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,459.88 : 113,209.28 = 28,687.24 : x
  2. Step 2: Convert to fraction form
    75,459.88/113,209.28 = 28,687.24/x
  3. Step 3: Cross multiply
    75,459.88x = 113,209.28 × 28,687.24
  4. Step 4: Simplify right side
    75,459.88x = 3,247,661,785.59
  5. Step 5: Solve for x
    x = 3,247,661,785.59/75,459.88
  6. Step 6: Final answer
    x = 43,038.26

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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.