Home / 45,687.64-68,434.32-21,960.34

Finding the Fourth Proportional to 45,687.64, 68,434.32 and 21,960.34

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Solution

The fourth proportional to 45,687.64, 68,434.32 and 21,960.34 is: 32,893.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,687.64 : 68,434.32 = 21,960.34 : x
  2. Step 2: Convert to fraction form
    45,687.64/68,434.32 = 21,960.34/x
  3. Step 3: Cross multiply
    45,687.64x = 68,434.32 × 21,960.34
  4. Step 4: Simplify right side
    45,687.64x = 1,502,840,934.87
  5. Step 5: Solve for x
    x = 1,502,840,934.87/45,687.64
  6. Step 6: Final answer
    x = 32,893.82

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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.