Home / 84,634.92-127,035-40,292.28

Finding the Fourth Proportional to 84,634.92, 127,035 and 40,292.28

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Solution

The fourth proportional to 84,634.92, 127,035 and 40,292.28 is: 60,477.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,634.92 : 127,035 = 40,292.28 : x
  2. Step 2: Convert to fraction form
    84,634.92/127,035 = 40,292.28/x
  3. Step 3: Cross multiply
    84,634.92x = 127,035 × 40,292.28
  4. Step 4: Simplify right side
    84,634.92x = 5,118,529,789.80
  5. Step 5: Solve for x
    x = 5,118,529,789.80/84,634.92
  6. Step 6: Final answer
    x = 60,477.75

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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.