Home / 84,306.12-126,464.64-25,147.77

Finding the Fourth Proportional to 84,306.12, 126,464.64 and 25,147.77

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Solution

The fourth proportional to 84,306.12, 126,464.64 and 25,147.77 is: 37,723.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,306.12 : 126,464.64 = 25,147.77 : x
  2. Step 2: Convert to fraction form
    84,306.12/126,464.64 = 25,147.77/x
  3. Step 3: Cross multiply
    84,306.12x = 126,464.64 × 25,147.77
  4. Step 4: Simplify right side
    84,306.12x = 3,180,303,679.85
  5. Step 5: Solve for x
    x = 3,180,303,679.85/84,306.12
  6. Step 6: Final answer
    x = 37,723.28

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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.