Home / 45,889.30-68,825.75-12,155.56

Finding the Fourth Proportional to 45,889.30, 68,825.75 and 12,155.56

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Solution

The fourth proportional to 45,889.30, 68,825.75 and 12,155.56 is: 18,231.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,889.30 : 68,825.75 = 12,155.56 : x
  2. Step 2: Convert to fraction form
    45,889.30/68,825.75 = 12,155.56/x
  3. Step 3: Cross multiply
    45,889.30x = 68,825.75 × 12,155.56
  4. Step 4: Simplify right side
    45,889.30x = 836,615,533.67
  5. Step 5: Solve for x
    x = 836,615,533.67/45,889.30
  6. Step 6: Final answer
    x = 18,231.17

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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.