Home / 84,662.13-126,881.77-47,239.82

Finding the Fourth Proportional to 84,662.13, 126,881.77 and 47,239.82

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Solution

The fourth proportional to 84,662.13, 126,881.77 and 47,239.82 is: 70,797.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,662.13 : 126,881.77 = 47,239.82 : x
  2. Step 2: Convert to fraction form
    84,662.13/126,881.77 = 47,239.82/x
  3. Step 3: Cross multiply
    84,662.13x = 126,881.77 × 47,239.82
  4. Step 4: Simplify right side
    84,662.13x = 5,993,871,976.08
  5. Step 5: Solve for x
    x = 5,993,871,976.08/84,662.13
  6. Step 6: Final answer
    x = 70,797.56

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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.