Home / 85,557.87-128,336.00-23,228.37

Finding the Fourth Proportional to 85,557.87, 128,336.00 and 23,228.37

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Solution

The fourth proportional to 85,557.87, 128,336.00 and 23,228.37 is: 34,842.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,557.87 : 128,336.00 = 23,228.37 : x
  2. Step 2: Convert to fraction form
    85,557.87/128,336.00 = 23,228.37/x
  3. Step 3: Cross multiply
    85,557.87x = 128,336.00 × 23,228.37
  4. Step 4: Simplify right side
    85,557.87x = 2,981,035,976.18
  5. Step 5: Solve for x
    x = 2,981,035,976.18/85,557.87
  6. Step 6: Final answer
    x = 34,842.34

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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.