Home / 75,562.89-113,270.45-28,143.24

Finding the Fourth Proportional to 75,562.89, 113,270.45 and 28,143.24

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Solution

The fourth proportional to 75,562.89, 113,270.45 and 28,143.24 is: 42,187.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,562.89 : 113,270.45 = 28,143.24 : x
  2. Step 2: Convert to fraction form
    75,562.89/113,270.45 = 28,143.24/x
  3. Step 3: Cross multiply
    75,562.89x = 113,270.45 × 28,143.24
  4. Step 4: Simplify right side
    75,562.89x = 3,187,797,318.54
  5. Step 5: Solve for x
    x = 3,187,797,318.54/75,562.89
  6. Step 6: Final answer
    x = 42,187.34

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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.