Home / 42,915.11-64,179.29-32,786.57

Finding the Fourth Proportional to 42,915.11, 64,179.29 and 32,786.57

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Solution

The fourth proportional to 42,915.11, 64,179.29 and 32,786.57 is: 49,032.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,915.11 : 64,179.29 = 32,786.57 : x
  2. Step 2: Convert to fraction form
    42,915.11/64,179.29 = 32,786.57/x
  3. Step 3: Cross multiply
    42,915.11x = 64,179.29 × 32,786.57
  4. Step 4: Simplify right side
    42,915.11x = 2,104,218,299.31
  5. Step 5: Solve for x
    x = 2,104,218,299.31/42,915.11
  6. Step 6: Final answer
    x = 49,032.11

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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.