Home / 45,688.64-68,435.82-21,961.34

Finding the Fourth Proportional to 45,688.64, 68,435.82 and 21,961.34

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Solution

The fourth proportional to 45,688.64, 68,435.82 and 21,961.34 is: 32,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,688.64 : 68,435.82 = 21,961.34 : x
  2. Step 2: Convert to fraction form
    45,688.64/68,435.82 = 21,961.34/x
  3. Step 3: Cross multiply
    45,688.64x = 68,435.82 × 21,961.34
  4. Step 4: Simplify right side
    45,688.64x = 1,502,942,311.20
  5. Step 5: Solve for x
    x = 1,502,942,311.20/45,688.64
  6. Step 6: Final answer
    x = 32,895.32

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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.