Home / 81,800.42-112,883.91-51,605.24

Finding the Fourth Proportional to 81,800.42, 112,883.91 and 51,605.24

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Solution

The fourth proportional to 81,800.42, 112,883.91 and 51,605.24 is: 71,214.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,800.42 : 112,883.91 = 51,605.24 : x
  2. Step 2: Convert to fraction form
    81,800.42/112,883.91 = 51,605.24/x
  3. Step 3: Cross multiply
    81,800.42x = 112,883.91 × 51,605.24
  4. Step 4: Simplify right side
    81,800.42x = 5,825,401,267.69
  5. Step 5: Solve for x
    x = 5,825,401,267.69/81,800.42
  6. Step 6: Final answer
    x = 71,214.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.