Home / 45,715.57-68,540.54-19,405.96

Finding the Fourth Proportional to 45,715.57, 68,540.54 and 19,405.96

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Solution

The fourth proportional to 45,715.57, 68,540.54 and 19,405.96 is: 29,095.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,715.57 : 68,540.54 = 19,405.96 : x
  2. Step 2: Convert to fraction form
    45,715.57/68,540.54 = 19,405.96/x
  3. Step 3: Cross multiply
    45,715.57x = 68,540.54 × 19,405.96
  4. Step 4: Simplify right side
    45,715.57x = 1,330,094,977.62
  5. Step 5: Solve for x
    x = 1,330,094,977.62/45,715.57
  6. Step 6: Final answer
    x = 29,095.01

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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.